2022年11月17日 · The footprint and pinout on the V4.0 are identical to the previous Wemos-minis, so there's no reason why not. They call the 5V pin Vbus now, but it still takes 5v in and drives the regulator for 3v3. I don't know how many manufacturers there are for V4, but the ones I have, and the ones I've seen tested, have better sleep performance,.

2021年7月18日 · Question regarding Wemos d1 Mini pins Hello, I am currently using the pins below for three momentary toggles, and and a rotary encoder. Are any of the other available pins acceptable choices for a ds18b20 temp sensor?

2018年12月24日 · This board pinout in the white marked PINs: RST - TX SVP - RX IO26 - IO22 IO18 - IO21 IO19 - IO17 IO23 - IO16 IO5 - GND 3V3 - 5V0 I can reconfigure the digital GPIO pins from the firmware but the other PINs is same (SVP is also the ADC_H). So that, it can be a drop in replacement of the WEMOS D1 mini.

2022年8月26日 · D1, D2 etc. really doesn't correspond to anything, and your libraries must do the mapping correctly if you want to use "d1" in your code. It's not always correct. It's safer to use the GPIO numbers. Look at the Wemo pinout diagrams, and note the GPIO number by the pin. If it says GPIO16 the pin number is 16.

2022年4月4日 · The diagram shows a 10k resistor between 3.3v (which is labeled 3V3 on a D1 mini) and D3 (also known as GPIO0). Then D3 goes to one side of your button with the other side of your button going to ground (labeled G on a D1 mini).

2020年10月8日 · It'll be a clone of an earlier version of the D1 mini. The early Wemos boards actually were built around ESP-12 modules. The pullups/downs should be identical to the current D1 mini. However, most of the pins (except GPIO16/D0) have built-in pullups you can enable, so you don't really need to worry about which pins normally have pullups.

Assuming you mean the D1 mini, the 5V label is misleading. It's actually the supply voltage/input to the voltage regulator, which is approximately 5V if you power it from USB. In any case, the current limit on that pin is whatever the limit of your supply is.

2023年2月1日 · I have been trying to get I2C examples to run on the esp32-s2 mini with no luck. Im using wire.h and calling wire.begin(sda, scl). Where sda and scl pins are 10 and 11.

2022年8月21日 · No, I used an ESP8266 Wemos at the time and it worked correctly (not perfectly, because the analog pin is lacking precision and the program detected some consumption when there was none). Mottramlabs are also selling a 4-channels version using an ADS1115 A/D converter that should deliver better results.

2022年6月16日 · It's been mentioned before, I'm sure, but if you're powering the I2C sensor from the Wemos, be sure the power supply to the Wemos is up to the task of supplying that extra load. e.g. monitor the 5v line on the Wemos to be sure it stays within ~.25v of 5v. Also monitor the 3v3 line you power the sensor with, as it may be sagging under the load.