Discussion between tlfong01 and kyrpav

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tlfong01

2:11 AM

@kyrpav So I already placed my TaoBao order with the cheapy tmc2225 and esp32 CH9102X.

tlfong01

2:21 AM

@kyrpav esp32 devkitc also looks good.

ESP32-DevKitC WROOM-32D/U - TaoBao ¥21.75
https://item.taobao.com/item.htm?spm=a312a.7700824.w4002-23848665094.28.bd3b4678ngPHf7&id=626251320824

I have not considered devkitc because it has something called "wroom" which I don't know about and worry that it might make things too complicated.

@kyrpav ILI9xxx drivers are too hard and too tedious for me to follow. So I gave up for good. I forgot what is itlead screen and lvgl, but not urgent for me now. Perhaps I might comment later.

11 hours later…

tlfong01

1:08 PM

The BigTree shop has already given my tmc2225 module to the SF Express. So my toy is on its way, should cross the border tomorrow, and arrive town tomorrow, or day after tomorrow. So I am now doing JIT (Just In Time) research to get ready rapid prototyping.

Now some references:

(1) TMC2225 Motor Driver Module V1.1 - Tinytronics €8.50
https://www.tinytronics.nl/shop/en/mechanics-and-actuators/motor-controllers-and-drivers/stepper-motor-controllers-and-drivers/tmc2225-motor-driver-module-v1.1

(2) TMC5161 Motor Driver Module V1.1 - Tinytronics €25
https://www.tinytronics.nl/shop/en/mechanics-and-actuators/motor-controllers-and-drivers/stepper-motor-controllers-and-drivers/tmc5161-motor-driver-module-v1.1

(3) TMC2225 Eval Board - Trinamic
https://www.trinamic.com/fileadmin/assets/Products/Eval_Documents/TMC2225-EVAL_user_manual_rev1.01.pdf

And some wiring docs: