Motorized Turntable v2

thingiverse

This is version 2 of my motorized turntable. It is controlled with MQTT. Firmware available.25.12.23: I give up the Wemos board. There was just endless problems with that board for me.Now instead, the turntable uses NodeMCU v3. Firmware for NodeMCU and Raspberry pihttps://drive.google.com/file/d/1AifTBNLsejJU8suN2MJZJoPh59ZmoDkU/view?usp=sharingFunctions:Continous motion clockwise/counterclockwiseStop continuous motion.Move to targetMovement completed message to mqtt broker.Acceleration/deacceleration implementation (so objects dont fall).USB Camera trigger (Gphoto2).Setting for number of photosSetting for camera delayPause / step back / resume functionParts:Raspberry pi zero/2WNodeMCU v3 (Lolin) Without soldered headers.Stepper driver: A4988Voltage regulator: XL40155v Motor: 28BYJ-4812v DC panel socket:6 mm balls and grease for the bearingrace. I use airsoft pellets.Precrimped JST XH-wires and 8-pin JST XH-connectors.Perhaps 1 or 2 schottky diodes (not sure if neccesary)..I would recommend converting the motor to bipolar and use a high input voltatge. It's very easy and will give you more torque. There are guides on youtube for this.I also recommend getting some 8-pin JST-XH connectors + precrimped wires. They will fit on the a4988 stepper driver.Links:https://www.aliexpress.com/item/1005005909680276.html?spm=a2g0o.detail.0.0.44205ff72LT2UH&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40050.362094.0&scm_id=1007.40050.362094.0&scm-url=1007.40050.362094.0&pvid=8b4d053c-e92d-488a-bb84-64fa2f9ce5d6&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40050.362094.0,pvid:8b4d053c-e92d-488a-bb84-64fa2f9ce5d6,tpp_buckets:668%232846%238110%231995&pdp_npi=4%40dis%21SEK%218.87%217.51%21%21%210.85%21%21%402101e5f117030768239725009e4e4d%2112000034805025447%21rec%21SE%21129135134%21https://www.aliexpress.com/item/1005006127872679.html?spm=a2g0o.productlist.main.5.2e083b69um6p0p&algo_pvid=a4d0cae0-3d1a-4fa6-9721-fd6c4ff5e6bc&algo_exp_id=a4d0cae0-3d1a-4fa6-9721-fd6c4ff5e6bc-2&pdp_npi=4%40dis%21SEK%21479.03%21153.63%21%21%21327.12%21%21%40211b801a17030413886076414e04f2%2112000035880741625%21sea%21SE%21129135134%21&curPageLogUid=nGvt3f2VodSa