https://bbqkees-electronics.nl/wiki/interface-board/board-connections.html

https://github.com/emsesp/EMS-ESP-Flasher/releases

This page explains the process of flashing the EMS‑ESP firmware on an ESP8266 board (such as a Wemos D1 Mini). Note that EMS‑ESP is a separate firmware designed for ESP8266 devices (as opposed to EMS‑ESP32, which only supports ESP32 chips).

• The EMS‑ESP firmware is maintained in its GitHub repository:
  • EMS‑ESP GitHub Repository
• Download the latest release binary for the ESP8266 from the repository’s releases section.

Several generic ESP8266 flashers are known to work well with EMS‑ESP:

• NodeMCU PyFlasher
  • A cross‑platform GUI flasher tool.
  • Download NodeMCU PyFlasher

• esptool.py
• A command‑line tool by Espressif for flashing firmware.
• esptool.py on GitHub

1. **Download EMS‑ESP Firmware:**  
   * Visit the EMS‑ESP GitHub repository and download the appropriate binary for ESP8266.

2. **Prepare Your ESP8266 Device:**  
   * Connect your ESP8266 (e.g. Wemos D1 Mini) to your computer via USB.
   * Ensure the device is in flash mode. Typically, this is done by holding **GPIO0** (often labeled as D3) low (i.e., connected to ground) during a reset.

3. **Select a Flasher Tool:**  
   * Open your chosen flasher tool (NodeMCU PyFlasher or esptool.py).
   * Select the correct COM port for your device.

4. **Flash the Firmware:**  
   * Load the EMS‑ESP binary file into the flasher tool.
   * Start the flash process and wait until the process completes successfully.

• EMS‑ESP GitHub Repository: EMS‑ESP
• NodeMCU PyFlasher: NodeMCU PyFlasher
• esptool.py: esptool.py