MID roller blinds

thingiverse

### Note:\r\n + Designed in Fusion360.\r\n + Project file attached.\r\n\r\n### Firmware:\r\nBest code for ESP8266 (NENA-17 + esp8266 + A4988 + mqtt) is found here: https://tasmota.github.io/docs/Blinds-and-Shutters/#using-stepper-motors\r\nIf you have questions about how Tasmota software works, visit the Tasmota Discord chat room for a discussion.\r\nhttps://discordapp.com/invite/Ks2Kzd4\r\n\r\n... or other options:\r\n\r\nCode for ESP8266 (NENA-17 + esp8266 + A4988 + mqtt) is found here: https://tasmota.github.io/docs/A4988-Stepper-Motor-Controller\r\nCode for ESP8266 (NENA-17 + esp8266 + A4988 + mqtt) is found here: https://github.com/TrDA-hab/blinds\r\nCode for ESP8266 (28BYJ-48 + esp8266 + A4988 + mqtt) is found here: https://github.com/andreypopov/blinds-popov\r\nCode for ESP8266 (28BYJ-48 + esp8266 +ULN2003 + mqtt/get) is found here: https://wifi-iot.com/p/wiki/46/en/\r\n\r\n### BOM:\r\nNEMA-17 Stepper Motor is available at this link: https://aliexpress.ru/item/32604882068.html\r\nNEMA-17 Stepper Motor (5:1) is available at this link: https://aliexpress.ru/item/32586860419.html\r\nNEMA-17 Stepper Motor (27:1) is available at this link: https://ru.aliexpress.com/item/32586836815.html\r\nA4988 Driver is available at this link: https://ru.aliexpress.com/item/1609523735.html\r\nA4988 Driver Board is available at this link: https://ru.aliexpress.com/item/32908836265.html\r\n28BYJ-48 Stepper Motor (12V) is available at this link: https://aliexpress.ru/item/33042428971.html\r\nDC-DC Step Down Power Supply Module, max=24V (MP1584) is available at this link: https://aliexpress.ru/item/32742116421.html\r\nAluminum Capacitor (100mF, 35V) is available at this link: https://aliexpress.ru/item/32814611460.html\r\nDC Power Adapter (24V 2A) is available at this link: https://aliexpress.ru/item/32961238897.html\r\n5.5mm x 2.1mm Power Connector is available at this link: https://aliexpress.ru/item/33049592958.html\r\nM3 Hex Bolt is available at this link: https://aliexpress.ru/item/32855482216.html\r\nM3 Brass Hot Melt Inset Nuts are available at this link: https://aliexpress.ru/item/4000761483243.html\r\nJST XH 2.54 (4 pin) Cable is available at this link: https://aliexpress.ru/item/32996835431.html\r\nJST XH 2.54 (4 pin) Connector is available at this link: https://aliexpress.ru/item/32741723157.html\r\nJST XH 2.54 Stepper Motor Cable is available at this link: https://aliexpress.ru/item/32814611460.html\r\n### Note:\r\n + M3 Hex Bolt, JST XH 2.54 (4 pin) Connector, and JST XH 2.54 Stepper Motor Cable are used in the project.\r\n\r\n### Tutorials:\r\n1. Modifying a 28BYJ-48 Step Motor from Unipolar to Bipolar is explained in this tutorial: https://www.stepcontrol.com/pdf/step101.pdf \r\n2. The diagrams show the supply voltage of the NEMA-17 Stepper Motor 12 volts (this is the minimum voltage). 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 this tutorial: https://stepcontrol.com/pdf/step101.pdf \r\n- for 28BYJ-48 (5v) recommended voltage is 12v (only if modifying to bipolar).\r\n- for 28BYJ-48 (12v) recommended voltage is 24v (only if modifying to bipolar).\r\n3. Stepper Drivers Configuration Tutorials are available at these links:\r\nA4988 - https://lastminuteengineers.com/a4988-stepper-motor-driver-arduino-tutorial/\r\nDRV8825 - https://lastminuteengineers.com/drv8825-stepper-motor-driver-arduino-tutorial/\r\nTMC2208 - https://wiki.fysetc.com/TMC2208/