. They have the arduino pinout.The R1 and R3 have A0 buttom left .The R2 has A0 + SDA, SCL and GPIo's to Board pins are screwy, so I'd say stay with R1/R3..My WEMOS R1/R3 will support 4 relay Catalex shield directly.I am using I2c LCD using 5 volt and DS3231 using 3.3 ...
LOLIN S3 Mini is a tiny ESP32-S3 WiFi and Bluetooth IoT development board that follows theWemos D1 Mini form factorand supports its equally tiny stackable shields to add relays, displays, sensors, and so on. Wemos/LOLIN introduced their first ESP32-S3 board last year wit...
This is D1 mini, it is a mini WIFI board based on ESP-8266EX. 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0) 1 analog input(3.3V max input) a Micro USB connection How to get started in : ...