From 5a7f682f117e8cc7ad4e591bf09d7cfd6357ec58 Mon Sep 17 00:00:00 2001 From: Dieter Fauth Date: Sat, 29 Sep 2018 22:03:03 +0200 Subject: [PATCH] Updated SP108E LED strip controller (markdown) --- SP108E-LED-strip-controller.md | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/SP108E-LED-strip-controller.md b/SP108E-LED-strip-controller.md index a2b6387d..80ca08de 100644 --- a/SP108E-LED-strip-controller.md +++ b/SP108E-LED-strip-controller.md @@ -27,11 +27,12 @@ PCB ![sp108e-board](https://user-images.githubusercontent.com/19874899/46249775-120aba00-c42f-11e8-8d2e-4262cb47cb9f.jpg) Open the housing, see the red marks for the holders) + ![sp108e-openhousing](https://user-images.githubusercontent.com/19874899/46249835-0ff52b00-c430-11e8-923b-1fa1cac6d1e5.jpg) RX/TX connection ESP to STM -![sp108e-rxtx-](https://user-images.githubusercontent.com/19874899/46249857-63677900-c430-11e8-9e4d-46d3f527aa12.png) +![sp108e-rxtx-](https://user-images.githubusercontent.com/19874899/46250002-eee20980-c432-11e8-8ffe-45bd28b71893.png) STM32F0 ![sp108e-stm32](https://user-images.githubusercontent.com/19874899/46249854-5fd3f200-c430-11e8-8168-6ba2791b891b.png) @@ -52,9 +53,11 @@ ESP-12 and its pins Buffer chip 74HC245 -![p108e-hc245](https://user-images.githubusercontent.com/19874899/46249912-834b6c80-c431-11e8-99e1-4b703f3ef1ef.png) +![p108e-hc245](https://user-images.githubusercontent.com/19874899/46250003-fa353500-c432-11e8-9035-897927aff6f2.png) Traces on bottom side from STM to HC245 (actually R3 and R4) + ![sp108e-traces-to-hc245](https://user-images.githubusercontent.com/19874899/46249954-1edcdd00-c432-11e8-8ad9-bcf360485a50.png) +For the hardware mod to make it working without the STM32F0, we need to break one of the traces on the bottom of the PCB. Then connect GPIO4 of ESP-12 with either R3 or R4. Sorry for being vage here, I did not try that yet and will add exact details later.