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arendst / Tasmota

Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at
https://tasmota.github.io/docs
GNU General Public License v3.0
22.28k stars 4.82k forks source link

Did somebody already look into the SP108E LED controller? #3936

Closed FauthD closed 6 years ago

FauthD commented 6 years ago

Hi, This is a controller for the WS2812 and similar LED chips (stripes). Prise is ~13€ and up. So far I analyzed it is equipped with these chips:

RX/TX of STM is connected to ESP. 74HC245 buffers the outputs

We can assume there is some firmware in the STM that does the low level connection to the LEDs. Question is how does the ESP communicate with the STM and what exactly does the STM at all. In worst case we can mod the hardware so the ESP can talk to the LEDs. Should be simple. I made some pictures with a microscope and can add this info to the wiki. Dieter Fauth

ascillato commented 6 years ago

Hi,

Please, for general question go to Tasmota Discord Chat at https://discord.gg/Ks2Kzd4

G0ldi2222 commented 5 years ago

Hi, This is a controller for the WS2812 and similar LED chips (stripes). Prise is ~13€ and up. So far I analyzed it is equipped with these chips:

ESP-12F STM32F-030C8T (Cortex M0) Winbond 25Q32 (EEPROM) 74HC245 XL1509 3.3E1 (Step down regulator)

RX/TX of STM is connected to ESP. 74HC245 buffers the outputs We can assume there is some firmware in the STM that does the low level connection to the LEDs. Question is how does the ESP communicate with the STM and what exactly does the STM at all. In worst case we can mod the hardware so the ESP can talk to the LEDs. Should be simple. I made some pictures with a microscope and can add this info to the wiki. Dieter Fauth

Hi, what was the result of the hardware mod? was it possible to flash the SP108E? don't want to mod the hardware, when it doesn't work... I just bought a new SP108E and unfortunately they changed the Layout of the PCB. but I still do have two controller here with the old layout if the mod would work.

G0ldi2222 commented 5 years ago

Download

FauthD commented 5 years ago

Hi, I had not the time to proceed, the only mod I tried is to add another ESP (keeping the original one in reset). In the new layout, is the GPIO0 usable? Or still directly connected to VCC?

G0ldi2222 commented 5 years ago

Hi... pity to hear that... was hoping to use my existing one with a useful software:) the installed version is impossible to add to WiFi networks. As it seems easier for my purpose, I am going to use the esp01 Modul with the led plc. It’s cheaper and I hope do-able for a noob like me:) That’s why I also can not tell you more about the layout. But I could do some closer pictures, if that would help or test something on it for you, if you instruct me...

Thank you very much for your quick reply and the effort you put in that project!

Best regards, Jan

Von meinem iPhone gesendet

Am 18.03.2019 um 19:14 schrieb Dieter Fauth notifications@github.com:

Hi, I had not the time to proceed, the only mod I tried is to add another ESP (keeping the original one in reset). In the new layout, is the GPIO0 usable? Or still directly connected to VCC?

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