石榴姐

ESP01 programmer

Overview

I have made some ESP8266 and ESP32 boards before. They use the same pins as the ESP-01 module to download the program, so a programmer is needed. The programmer on hand was bought on Taobao and does not have an automatic download function. The GPIO0 pin needs to be It's not convenient to pull down, so I made this burner. It uses CH340C chip, has automatic download function, adopts ESP-01 module pin interface, retains EN, GPIO0 (FLASH) buttons, read and write indicator lights, and it is more convenient to use TYPE-C data cable to connect to the computer. The dual triode BC847BS can be replaced by the LMBT3904DW1T1G (cheaper).

Empty board:

Apply solder paste:

Manual patching:

Fry on one side:

Cooked:

Combined with ESP-01 module:

Combined with HOMEKIT switch board:
HOMEKIT single switch accessories based on ESP8266 are here: https://oshwhub.com /yiplay/homekit_sonoff_esp8266_copyAdditional
explanation:
During use, the ESP-01 module cannot be downloaded automatically when burning it. You need to press the GPIO0 (FLASH) button. Solution: Solder a 10k resistor between EN and 3V3 to automatically download. This resistor has been modified and added to the original project.

Design Files

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Update:2025-06-24 09:43:38

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