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UncleRus / esp-idf-lib

Component library for ESP32-xx and ESP8266
https://esp-idf-lib.readthedocs.io/en/latest/
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TM1621 driver request #498

Closed kiralikbeyin closed 1 year ago

kiralikbeyin commented 1 year ago

Device name

TM1621

Device description

New sonoff TH LCD screen

Device product page URL

https://itead.cc/product/sonoff-th-elite-smart-temperature-and-humidity-monitoring-switch//ref/34/

https://templates.blakadder.com/sonoff_THR320D

Datasheet URL

https://datasheet.lcsc.com/lcsc/1810191525_TM-Shenzhen-Titan-Micro-Elec-TM1621_C41326.pdf

Can the device be purchased at any of the followings?

URLs to purchase the device

https://www.aliexpress.com/item/1005004450591007.html

https://itead.cc/product/sonoff-th-elite-smart-temperature-and-humidity-monitoring-switch/ref/34/

Other implementations

https://github.com/arendst/Tasmota/issues/15856

UncleRus commented 1 year ago

Datasheet in Chinese is a bit too much for me...

UncleRus commented 1 year ago

OK, here is the code for this display: https://github.com/arendst/Tasmota/blob/d9d9ca2651363ac364f720403657e557e8a0efe8/tasmota/tasmota_xdrv_driver/xdrv_87_esp32_sonoff_tm1621.ino

The bad thing is that specific segments of the display on the Sonoff's device are connected to specific pins of the chip. The universal driver will consist of a single function that sends an address/command/data to the chip, because there will be no binding of segments to pins - it will remain entirely on the programmer who will use the driver. Adding hundreds of different chip/LCD configurations to this repository is hell. Thus, I decline your request for a driver for this chip and close this issue.

If you figure out how to write a convenient universal driver, feel free to reopen the issue.