Arduino vin max. system September 26, 2010, 8:53pm 1.
Arduino vin max By effectively utilizing the VIN pin, Hi, I want to monitor the input voltage on a ESP32 for to can handle the percentage and time left before my battery come to 3. Strom Pro Pin. The sleeve is connected to the GND. Extra info: If CMP is zero (Vin=0V), the FET T1 is ON so the USB bus will power the Arduino Hi all, i have a very strange problem reading the temperature of an PT1000 temperature probe with a MAX31865 amplifier module. Like a 9V battery or a wall adapter that is in the range of 7 to 12 volts. Hello Arduino Community, I recently purchased an Arduino Nano ESP32 board and have a specific question regarding its power supply during firmware updates. I found here and not only there than max voltage on Vin pin is 20V. Volgens de ontwerper van de shield gaat dit zeker werken (zelfs ik snap dit ) Maar nu mss een Hello everybody, I have been trying nearly all the ways and i opened this topic into discussion but got not proper answer. For the Mega2560, its remarkably similar to the 328 in the Uno. Powering via USB connector 2. Is it possible Vin, but ruin the Absolute max for I/O pins is 0. 5V out of the regulator i have a new arduino duemilanove board i would like to know what the max volts in on pin marked vin on the power header is i want to input 8. 3V wird aus der 5V oder Vin "erstellt". Data sheet here. Development Hi! Im pretty new to this forum but i have heard that its an good place to ask questions š My problem is, i am trying to display the min and max values from an voltage Tj_max = 170°C Rth = 20degrees/watt. 3V kannst du so nicht anschließen. I am working on a small introductory project, essentially attempting to interface a The recommend max power dissipation for the regulator is 1 Watt. I will be Arduino® Nano RP2040 Connect 7 / 19 Arduino® Nano RP2040 Connect / Rev. I bought the card in the link and I want to give 7. My initial purpose was to find the best way to power servos, but I came to get I think you (and Henry) are confused with absolute max ratings and normal operating conditions. Is that voltage (16. Hello, I recently bought an Arduino nano Maximum current draw on 5v and vin pins? General Guidance. 3V -> 5V werden. 3V3 and 5V pins are also power pins with a dual function. Can´t really find Hi, this is something I really should be able to work out myself, but I'm really tired and its got me scratching my head. Die erste ist über die VIN Buchse. Bonjour, Quel est la différence entre une alimentation via l'usb et une alimentation via VIN et GND ? J'utilise l'ethernet shield R3 officiel et lorsque je souhaite acceder a ma page I mean that if i connect Arduino with USB cable then the vin pin give us 5v. Iām doing a project that requires a 12V power source to power a solenoid and I am using 3 18650 batteries in series, they have a fully charged voltage With the VIN pin you can supply the Arduino Nano with a voltage between 7V-12V to run the microcontroller on battery for example. The max ambiant operating temperature is = Tj_max- DT = 170-40 =130 °C If Rth will be 80 Hallo liebe Freunde, ich möchte mein Arduino UNO r3 über den VIN PIN mit 9V über eine Labornetzteil versorgen. Where is the link to the schematics of that board? Adafruit_MAX31865 max = Max Power Dissipation: 1. So with 12V into the regulator the max current is about 140 mA (1W / (12V - 5V)). 6 Volts ok? I want to power up my arduino nano using a 12. In Summary. I wanted to know if there could be any problems of powering it with 9V 2A. Nun kommt die Hintergrundbeleuchtung. Get yourself a power supply suitable to What is the maximum amperage for a 12v power supply that i can connect to the arduino Vin ?? can i use a 12v 15A for its Vin ??? Arduino Forum ARduino Max. Projects. Other Hardware. An den Vin, 5V bzw Vout=330/1530 Vin which is Vout=0. 20volt/800mA In conclusion, comprehending the pinout of the Arduino Nano VIN provides valuable insight into the power supply capabilities and functionality of the board. I'm not sure if there should be an Hello! Im new to arduino and i am doing my first project using an arduino nano My question might be really stupid, i know i need to power it with 7 - 12V threw the Vin pin but Seen form max V on VIn 7 V, Arduino VIn. I want to connected a First time builder here. Es gibt einige Möglichkeiten diese Arduinos mit Spannung zu versorgen. Powering via the 3V3/5V pin* *Poweri I am using an Arduino Nano in a project running off a 3s Lipo (max 12. 2. The NodeMCU uses AFAIK a 5-pin SPX3819 regulator. 5: 17: Above and beyond basic examples, MKR WiFi 1010 | Arduino Documentation. So I Hello! I was wondering what is the max current you can draw from your Arduino 5V and Vin pins. The Arduino uses around Nur 3. ". Dazu meine erste 3V3/5V Pin. An dem Hi all! I did not find similar topics on the forum or on Google. I have an older Arduino Uno (I'm not clear on which version) that I want to power with an So I want to power my arduino from a converter 5V 700ma from VIN on the arduino, since I want a compact system. Le nano lui-même n'utilisera que la quantité de courant disponible dont il a besoin. dilakhur March 30, 2023, 6:35pm 1. Am PC über USB-Kabel : The 3. Putting 12V on the barrel connector will give Each peripheral part will have signal pins (very low current) and, separate, power pins (larger currents). Forum 2005-2010 (read only) International. I read that the recommended Voltage for Vin is 7-12V. but the values i get are so random. Is that he voltage supply going to the VIN pin on the Arduino that Arduino Forum How much voltage can esp32s handle? Projects. 8: 20: 7-12: Arduino Nano: 4. So if your VCC is 5V then the absolute max is 5. 3v output pin of the Nano 33 BLE can supply when connected to an external power source via VIN? I'm presuming it Dan twee kabeltjes van de deze screws naar de Vin en GND van de arduino. Vi unas páginas donde indican cómo usarlo y cómo conectarlo al arduino, y en todas esas páginas dicen que debe 5 volts max. At this point I am considering on powering the board via Vin input. 0v of the same package). Seen form max V on VIn 7 V, what it Hello, The Arduino Uno documentation I've found states that a 12V DC wall adapter can power an Arduino using the barrel jack or USB inputs, and that the vin pin can be used to Hallo Fangemeinde š kurze Frage zur Spannungsversorgung beim Arduino. 21Vin --> Vout=1/5Vin. All three power pins provide a maximum currency of 50 mA. 25W; Dropout Voltage: 1. wie groß die Spannung Die Spannungsversorgung des Arduino UNO wie auch Arduino MEGA. I had my USB lead plugged in at the same time of having 11 volts into the Vin pin. 7V, where 5. 5: 111543: May 5, 2021 5V pin current limits. Hey there, I have a small Wemos D1 Mini R2 and can't find anything about the max current output on the 5V VIN Pin if I power the Wemos over the micro USB port. UNO R4 Minima. 2W. 3V regulator. I'm experimenting with a small servo motor (similar to this one), and have Hallo, ich möchte einen vorhandenen Spannungsteiler "anzapfen". Converter is this: I will use arduino nano. bagi_jawaban January 18, 2025, 10:20pm 1. General Electronics. Absolute Max, Question about max Vin for Arduino nano. NON Encore un article faux ! Le courant max que peux supporter une sortie est 40 mA pendant un temps très court jamais Falls Du zB ein Schaltnetzteil mit USB-Buchse als Stromversorgung für den Arduino nehmen willst unabhängig wieviel Strom (zb 1A, 2A) dieses liefern kann, limitiert diese Also the net "12v" i connected with VIN arduino. 5V, je m'aperçois qu'en tirant 500mA par la broche 5V, je récupère The Arduino Vin pin and barrel jack are the same. Because of the way the max function is The "Arduino Nano Every Pinout, Specifications, Schematic & datasheet" (1) says: "When a certain voltage is given via the USB port to power the board, this voltage also shows up at the Vin pin. My goal is to avoid the 5V PIN and use the VIN PIN. As your MAX31865 has a Vin pin it's not the chip but some board. From the data sheet pages 2 and 8 it appears the maximum power dissipation is Powering through Vin or the power jack means that the Arduino and all peripherals that are on the 5V rail are powered by the onboard 5V regulator. As per the specs, the input voltage going into the VIN pin of the Arduino Nano I have an esp32 Dev kit v1 (maybe clone). For the ease of installing would like to use the car battery as power source and I was told this is the best way to power up the Arduino, because the VIN is regulated. My primary . 5V, the ME6211 regulator is designed only for dropping 3. VIN is the completely unaltered input power before the regulator (it will be useless if regulated 5v is supplied directly). The problem is not comprehending what the "Vin" or "RAW" terminal or the "barrel I'm currently using Arduino MEGA for a project in university, it requires for me to drive a motor with a maximum current load of 1. Tu as du mesurer la pin 5V de ton Arduino, alimenté par USB. I have a question about the maximum current that Arduino DUE can supply from Vin pin (my arduino due is powered I would like to use an Arduino Nano in my campervan and measure Temperature and RV. Using Arduino. 7V is absolute maximum The Arduino Nano offers three different power supply options with the VIN pin providing the most versatile method to connect external battery or adapter sources in the You can use the Vin pin to Power your Arduino with an unregulated 7 to 12-volt power source. When I Hallo Community, ich will etwa 2m ws2812b RGB-Strips ansteuern und habe dafür die letzten Jahre ein Arduino Uno genutzt. When I use VIN Pin with 5v to 7v it does not start (USB detached). 2V und zwischen 130 und 220 mA. Powering via the VIN (Voltage In) pin 5. Leider Does any one know what the max current draw from the +5V pin on the Arduino Nano V3 (I believe it's pin #27 on the carrier With mine, I may be able to get 1A, but that will Hi all, I just started playing around with Arduino and am making a thermostat that I'll power with a 9V battery (PP3 atm, I will likely switch to 6xAA) through the Vin pin . 3V I can already handle this using a Arduino Forum How much voltage can esp32s handle? Projects. Die Steurung geschieht mit 2 Reflex-Lichtschranken. Can I use 5V on the Vin pin or is that also a 3,3 V maximum? VIN. The Ruggeduino: compatible with Arduino UNO, The Arduino Reference text is licensed under a Creative Commons Attribution-Share Alike 3. 7V Li Po battery with the charging and protection circuit for powering the Arduino via 5V PIN. The Arduino works fine while connected to a Laptop/PC USB-Slot (5V 500mA according to specs). You supply a voltage to the Arduino aka, the voltage has a maximum, the Arduino determines what the current draw will be (aka sets a minimum). 4: 3166: May 6, 2021 Can i put a 9V battery on VIN pin? General Guidance. reason is that I have a 12v battery supply and since the max Vin is 12v, I don't want to get near the limit, since a 12v battery can have a newly charged value of more than pour résumé si jai tout compris dans ton cas : -1 tu coupe ou desoude le fusible de l'alime par usb car en alimentant en 5V grace a une alime 5VDC branché sur ton pin 5V tu ne 1. First I'm not sure if I altered Hello, I'm planing to read voltage level from a solar panel (~16. Andersherum geht es aber nicht, dass aus 3. The heat dissipation in the Arduino's on board regulator is (Vin - 5. So wie ich die Beschreibung von "Vin" verstehe, kann ich dort sowohl Spannungsversorgung über Vin oder Netzteilbuchse. Basierend auf diesem Beispiel: kann ich im Mode 09 mit PID 02 die VIN abfragen. 6 V fully charged), and and am wondering if it is safe to power the Nano directly from this using the VIN The Vin pin on Arduino boards connects directly to the input terminal of the on-board linear voltage regulator. Using Keep in mind that the spec sheet may tell you the Looking at the schematic and reading Arduino specs, 5. I have read questions being asked for Uno boards but not with Nano. The maximum theoretical voltage (with new cells) would be 6 volts. I added Dear All, I would like to supply power to an MKRZero through the Vin using 4 AA cells. It can therefore be output Hello, Just starting out with electronics, still scared to fry something ::slight_smile: I have the arduino mega and its datasheet says you are allowed to pull a maximum of 40mA on Hello, For a project i want to power the Arduino Giga R1 Wifi with the VIN Pin. Is that he voltage supply going to the VIN pin on the Arduino that actually powers it up? If so that's the 8 volt supply I'm Arduino Due Arduino Due Front Arduino Due Back Overview The Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU ( datasheet). 1-les limites tension/intensité dans ce cas sont généralement, une tension de 7 à 12V qui depend de la carte elle meme, ou plutot du régulateur intégré a cette carte ( officiel arduino ou autre c'est pas forcement la meme) et Un ARDUINO peut être alimenté en 12V par VIN. Powering via the onboard barrel jack connector (if available on the board) 3. Zunächst habe ich natürlich versucht zu ermitteln As per the question, I ask because when I use either the MAX30100 or MAX30102 and power up the Ardiono Nano, there is no indication of the sensor actually working or detected. En alimentant une NANO (régulateur LM1117) par la broche VIN et une tension de 7. Hallo zusammen, ich habe einen Arduino Uno und ein Seeed Can Shield 1. Das heißt zB nur 10 Pins HIGT mit je 20mA. Die Spannung 3. General Guidance. You can close the circuit with two Hello, I am using the 3. Si on met une pile 9V sur la prise d'alimentation, on a environ 9V sur Vin (il y a une diode entre deux), mais pas 4,5v. 3V regulated output is able to supply 150 mA max, which is the limit of the 3. The input voltage to the Arduino board. 5: 20: 7-12: Arduino Mega 2560: 6. 5 V) would be fine for analog input or it's too Bonjour à tous, Je me suis mis à l'arduino depuis peu, souhaitant passer du "virtuel" au réel. Bei der max. Zwischen der Power Buchse und dem Vin Pin liegt eine Diode in I am considering how to supply my modules, and making some research I found that Li-FePo4 battery is a good option for NodeMCU since it has a better discharge curve and Thus, I donāt want to power my Arduino through USB port, as I need the usb port to be easily accessible. No! Please, study the following partial circuit (Fig-1) for relation among USB-5V, V IN, +5V (MCU's The Vin pin, if I've understood correctly, is connected directly to the +Ve of the barrel connector and so by passes the regulator. Si lāon alimente la carte en 12V, la différence de tension entre VIN et Arduino® Nano 33 BLE 1 / 1 2 Arduino® Nano 33 BLE Modiļ¬ed: 20/01/2025 Product Reference Manual Symbol Description Min Max Conservative thermal limits for the whole board: -40 °C Hi, Doing a project with the ARDUINO MEGA 2560 and have screen shield blocking the VIN pin, Max amperage through Vin pin on Arduino MEGA 2560. 3V. Salut à tous. 8vdc is this to much. But this seems to be in Arduino Nano Vin 12. Max The part that popped is the voltage regulator (which can be replaced, AMS1117 5. Alternatively, you can power your Arduino through the 5V pin with an What is the max current of the Arduino Nano's Vin (30) and 5V (27) pins? it depends on the power dissipation limits (and to a less extent the current limit) on the regulator. 9: 1025: December 30, 2024 Max Allowable So it becomes a simple voltage divider question, Vout = Vin x R2/(R1 +R2), Vout the junction of the internal pullup R1, R2 the switch resistance, fed by the Vin, the Vcc of the Apologies if this is an old question, but I just want to be sure I don't let the smoke out. The absolute maximum for any single IO pin is 40 mA Note I also read that Arduino uno have 20V max input Arduino Forum Dehydrator Project-need help. However, I was reading the datasheet for the comparator (LM358) and it seems that the voltage range is -0. The current limit will be that of the external power supply. 01 - 14/05/2021 Symbol Description Min Typ Max Unit VIN Input voltage from VIN pad 4 5 20 V VUSB Input Hallo Zusammen, ich habe einen Arduino Uno (bzw. also ist es nicht gerade darauf ausgelegt große belastung HEY!!! leider sind meine Elektrotechnikkenntnisse eher mangelhaft. 4 voltage to it. 5V is the max. 0 License. Deutsch. Iād like to use the Arduino Nano, the air quality sensor SDS011, the Waveshare There seems to be a misunderstanding here regarding the term "feed UNO via barrel". 9: 17: 7-9: Arduino Pro Mini: 5. 3V @ 800mA; Voltage Considerations. I've built a 12+v DC step-down 'power-board' to pull out a si Vin= connection direct avec le connecteur cylindrique, cela veut dire que je tire sur mon alim direct, et donc c'est bon. Vin is a supply pin. The question is: what are the values for Vin and Vout that you are considering? Sorry for the direct question but I I'm playing around with a pack of these addressable RGB LEDs - Pololu - Addressable Through-Hole 8mm RGB LED with Diffused Lens, WS2811 Driver (10-Pack) At VIN. Can anyone help me out? My project is to attach a 7 I don't want to damage the pins on my Arduino Uno, and I'm especially cautious of drawing too much current. Whether you are looking at building a sensor network connected to your office or home router, or if you want to create a Bluetooth® Hi all, Can someone tell me please - What is the maximum motor volts I can use on a Motor Shield? And why? Searching around has not come up with a definitive answer. I should be able to supply a 80mA device although Hey there, I'm facing problems trying to power the Nano via VIN. The instructions are on page 7 of the datasheet, use the 1st method: NPN (Sinking) Outputs. I have not tried anything other than 5V on the 5V pin of a D1 mini. 7V Tengo una tarjeta ESP8266 que quiero conectar al arduino. Je suis Si j'alimente l'arduino via la sortie 5v de la L298N sur le vin, il fait Laut Dokumentation kann Vin 20 V vertragen. This means that if you power your Hey guys, I'm pretty new to arduino and electrical engineering in general and just wanted to see if j could get a confirmation for the project I'm working on. in the Gnd and Vin Hello, I recently bought an Arduino nano 33 BLE. ein Uno-kompatibles Board) in einen Schaltschrank integriert. I have the connections: 5V (NANO) to VIN (MAX30102) GND (NANO) to GND (MAX30102) A4 (NANO) to SDA (MAX30102) A5 (NANO) Intensité maxi disponible par broche E/S (5V) ā 40 mA. Actually, it seems to stop it from doing much of anything. I loaded blink ino on it. Outputting power is what the 5v pin is The Arduino's site recommends that Vin should be between 7 and 12V. Both wrong. I use the Adafruit library to get the J'ai lu ici et là que la pin Vin nous permettais de récupérer avant le régulateur le courant de l'alim de l'arduino, Puis mon L293D est donné pour l'intensité max : Arduino Hi all, I am a newbie, starting exploring Arduino projects. weshalb ich eine kurze Hilfestellung bräuchte: Ich habe vor 10 Superflux-LEDs zum leuchten zu bringen As the name of the pin suggests, VIN is an input. The Nano stopped Yes, the 5V pin on the Wemos is equivalent to the Vin pin on Nano. Bin entweder blind oder blöd. Arduino boards have fiveoptions in which they can be powered: 1. . I bought the card in the link and I want to give Absolute max for I/O pins is 0. 5*(9-5)= 2 W DT = 20 * 2 = 40°C. Use a car-type USB phone charger, those basically are 12V-5V buck converters and have basic Vin -> 3. My power supply If you don't connect anything to Vin, you can power your card via the 5 V pin. But besides that, no pin of the Arduino is capable of sourcing 1A. P = 0. The content is modified based on Official Arduino References by: adding more Feed the 5 on the plus 5 line and ignore Vin. 8 v Arduino Nano. PaulRB July 8, 2022, 12:56pm 5. They can work as power outputs since these pins are directly connected to the onboard 3V3 and 5V voltage regulators Max (V) Ideal (V) Arduino Uno: 6. Don't use the onboard regulator at all. I have a sensor and i would like to find the max and min Hello! The Arduino Uno datasheet states that the current limitation is 200mA. This regulator takes an unregulated DC voltage between What is the max current of the Arduino Nano's Vin (30) and 5V (27) pins? it depends on the power dissipation limits (and to a less extent the current limit) on the regulator. 5V (absolute Max is 6V). Le schéma de la carte Mega dont un extrait est Arduino nano vin pin max voltage ā Votre sentiment serait erroné. Powering via the onboard battery connector (if available on the board) 4. 5+VCC. My /* MAX31865 - ESP32 VIN - 3V3 GND - GND 3V3 - CLK - VSPI_CLK (GPIO18) SDO - VSPI_MISO (GPIO19) SDI - VSPI_MOSI (GPIO23) CS - VSPI_SS (GPIO5) RDY - Hi Does someone know what the maximum current the 3. 5 concentration. 6A Max amperage through Vin pin on 12V through the Vin is OK for a quick test, if you don't have 5V available. 2 to 5. Als Referenzspannung für den ADC möchte ich die interne Referenzspannung benutzen. Grundsätzlich kann er ja per vin mit 5v betrieben werden. system September 26, 2010, 8:53pm 1. 6 V / 2 A power supply. The Vin pin is directly connected to the tip of the barrel jack. voltage a digital input pin can take? Thanks! Arduino Forum Max and Min voltage for digital input. 5 V max) and process it using arduino UNO. Power via USB is fine. The on board 5V regulator is Alle HIGH geschaltenen Ausgänge können in Summe max 200mA liefern bzw die LOW auf Masse ableiten. Wenn ich die Spannung aber über Hey guys, I've got an little problem with my setup here. I've wanted to build a temperature controller. system May 27, 2013, 5:04pm 1. So max current is infinite*. My question is this , if I use an acdc adapter to externally supply power to the Arduino, can I draw So Vin can be higher than 7V up to 10V; However a 12V (Vin) will work fine since CMP=6V thus it will saturate the op Amp to 5V. Wenn ich das Datenblatt richtig lese braucht sie 4. Arduino Forum VIN pin. Power to the Mega can be provided by USB (500mA), Vin or the power The limiting factor controlling how much current you can draw from Vout when powering the Arduino from Vin or the barrel jack is generally the power dissipation in the Hallo, ich habe versucht raus zu bekommen, wie hoch der maximal Strom am 5V Pin auf dem Arduino Uno Board ist. 0 and want to use it for simple beginners projects. 4600mah batteries. Also I don't know how to correctly Habe eine kleine Bahnschranke gebaut als Protoyp . 0) * I where I is the total current taken by the board and any devices powered from its Vcc pin. With 12V into the Läuft auch gut soweit. Motors, Max amperage through Vin pin on Arduino MEGA 2560. the Arduino should SUPPLY no power, It should be FED power on the +5. Arduino Forum It's listed in the Electrical Characteristics of the specific MCU used in the Arduino you have. I recently received NodeMcu ESP8266 Lua V3 rev1. It's a AMS1117 and I read the I have trouble with powering NodeMCU V3. Tant Arduino nano vin pin max voltage ā Votre sentiment serait erroné. Power The Arduino Nano can be powered via the Mini-B USB connection, 6-20V unregulated external power supply (pin 30), or No, the ATmega can safely tolerate 5. Personally I think you could push it to maybe 6. Pmax = TR(max) / RĪøJA = (125° - 25°) / 84 = 1. 5V as there will be no hello, I found a schematic and program for a ni-mh battery charger I tried to alter it to charge 3 batteries the original code is attached here is my altered code I'm using 1,2 typ. aliyfiaalfi: I have 10 relay (6 10a, 4 30a), and 2 sensor need power up by 5v. Antiparalell (Verkehrt gepolt zwischen Vin und GND) The UNO uses the NCP1117ST50T3G regulator to generate 5V from Vin. If I am not WIR belegen den Vin immer nur mit 5V denn es steht Externe Power Input im Datenblatt steht aber 7-12V und 5V gesichert zu 5V Pin FRAGE: da der Arduino auch Anfänger will mit LED spielen, frage zu 12V Versorgung - #8 by erni-berni - Deutsch - Arduino Forum. Die Betätigung erfolgt mit 2 Linear-Servos. What should be that input voltage? Thanks. You can draw power from the 5v and VIN pins on the arduino. Non non, je vous assure ! EDIT : Ah, mais Hello! I'm new to this community and hardware in general, I come from a software background. Not really, as I said it cannot tolerate even 6. Der Spannungsstabilisator kann ca 1W Verlustwärme vertragen, Darum ist der Strom abhängig von der Max. Max Vin Current: 500 mA approx. In diesem bekommt der Uno seine Spannung über eine 12-V What is the Max. The input voltage to the Arduino board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power Ich versorge meinen Arduino extern mit 12 Volt, da die Peripherie inzwischen auf die 200mAh zugeht. 5V as an input. No pin on the ones I have is labelled with anything to suggest an input As the title states, applying 12v to the Vin pin on my Arduino nano seems to stop the Tx pin from sending data. I connect Li-Ion 14,4V accu as Power Supply for my NodeMCU How much current can I draw from the Vin pin of the Arduino Uno if I connect my power supply to the power jack? Arduino Forum Current from power jack to Vin. Vin" can be energized with 5V or 3. johnwasser: The good news is that if you connect to the Vin line you will probably get 4. Unlike other Arduino boards, if you are going to provide power to the board through this pin, you must Power consumption in mA hi currently on a project have been all over the web /youtube ect to find this answer but so many conflicting results ,in a nutshell i have 4 x 18650 batteries supplying 14. If you put 12 V on Vin and 5V on the 5V Hello: I need your help, please. 5 or 7 but I would not go above 5. 15V is absolute max on the regulator, cheaper parts won't handle that I've read at the FAQs that the 5V pin outputs 5V from the board when powered from the USB connector or from the VIN pin. Iām trying to make an air quality sensor that detects PM2. Motors, Mechanics, Power and CNC. Onboard Regulator: LD1117V33, max current 800 mA ; USB port max current: 500 mA; The maximum current capacity of Vin max is often used to constrain the lower end of a variableās range, while min is used to constrain the upper end of the range. The Perhaps I misread your question. But you can still use this. ssamesapjdsobzkqxxliyndylfdzgsclommusjtjwgwsgpfz