Wemos D1 R2 power. Using Arduino Project Guidance. AJLeoncio March 24, 2019, 10:59am 1. Hi! this is my first post in the community and i would like some help with my capstone project. i am making a mobile light trap with LED's and a wemos module. my main power supply would be a 12v motorcycle battery, i've tested the LED's and they're working I tried several tutorials to flash the original firmware on my wemos D1 mini with no success. No blue led and only the message ets Jan 8 2013,rst cause:2, boot mode: (3,6). I tried different versions of the FLASH_DOWNLOAD_TOOLS V.2.4 and V.3.6.5. V 2.4 gave me errors, none with the V 3.6.5. Communication Interface: UART – 8N1, 8E1, 8O1, Eight kinds of UART baud Rate, from 1200 to 115200bps (Default: 9600) You must pay attention to communication level that differs from the power supply, the second can receive voltage like 3.3v (esp8266 and esp32) and 5v (Arduino), but the first want a 3.3v, so to connect to an Arduino, you must use a Voltage divider (Voltage divider: calculator Flash D1 mini from browser via USB 2. Solder 3 wires (5v+, ground, data) 3. Power up D1 Mini from USB 4. Have fun with some blinkenlights. Yes, but they're going away from 8266 and going to ESP32. They've already dumped support for the audio reactive version due to low processing power of the 8266. The awkwardly-named "WeMos D1 ESP-12F ESP8266 Motherboard Module with 0.96 inch OLED Screen" is an $11 development board that contains an ESP8266 Wifi board, a screen, a 5-postion switch, an 18650 Li-ion battery holder and charging circuit with protection, a usb power socket, switch, and serial programming setup. There is a connector for a separate power supply for the servos, and 99% of the bottom layer is a ground fill. As for mechanical ruggedness, you can always put the shields on the bottom, and the D1 Mini (which is relatively light) on top. But the shield is quite small and feels pretty solid. The ESP8266 D1 R2 WiFi board utilizes the ESP8266 WiFi enabled processor, and puts it onto an Arduino Uno board footprint. It provides a way to work with the ESP8266 in a familiar setup and does not require a breadboard in order to make interconnections since it has the typical on-board female headers. It will also work with some Uno shields 0U0i.

wemos d1 mini power requirements