v2.1 BIG roller blinds
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### Note: + Designed in Fusion360. + Project file attached. ### Firmware: https://github.com/arendst/Tasmota/discussions/11731 If you have questions about how Tasmota software works, visit the Tasmota Discord chat room for a discussion: https://discordapp.com/invite/Ks2Kzd4 ### BOM: NEMA-17 (27:1): https://ru.aliexpress.com/item/32586836815.html Driver A4988: https://ru.aliexpress.com/item/1609523735.html Driver A4988 board: https://ru.aliexpress.com/item/32908836265.html DC-DC Step Down Power Supply Module, max=24V (MP1584): https://aliexpress.ru/item/32742116421.html Aluminum Capacitor (100mF, 35V): https://aliexpress.ru/item/32814611460.html ### Important information: 1. The recommended voltage is 24 ... 35 volts (respectively, the capacitor should be 35 ... 50 volts). More information about the effect of voltage on stepper motor operation can be found in the tutorial: (see 5. POWER SUPPLY): http://stepcontrol.com/pdf/step101.pdf 2. Stepper drivers configuration tutorials: A4988 - https://lastminuteengineers.com/a4988-stepper-motor-driver-arduino-tutorial/ DRV8825 - https://lastminuteengineers.com/drv8825-stepper-motor-driver-arduino-tutorial/ TMC2208 - https://wiki.fysetc.com/TMC2208/
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