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STD SmartSpin2K
License: CERN Open Hardware License
Mode: Editors' pick
Hardware (3d Printed) and Software Project that uses an ESP32 and stepper motor to control spin bikes that have a resistance knob. The initial target was to use it with Zwift: stationary bike up hills and feel the burn.
Optionally, the SmartSpin2K project has also progressed to the point of where it's useful without the hardware as a BLE device multiplexer, heart rate to watt converter (estimator), and proprietary BLE device to normal FTMS protocol converter using only the readily available ~$6 ESP32 devkit.
This is the initial design for a full prefabricated custom PCB with components already soldered. It has not made it past prototype stage and there isn't an enclosure designed to fit it yet.
ID | Name | Designator | Footprint | Quantity | BOM_Supplier Part | BOM_Supplier | BOM_Manufacturer | BOM_Manufacturer Part |
---|---|---|---|---|---|---|---|---|
1 | 0805 | 3V3,3V7,5V0 | LED-0603 | 3 | C2286 | LCSC | KENTO | KT-0603R |
2 | 1uF | C1,C14,C15 | 0603 | 3 | C15849 | LCSC | SAMSUNG | CL10A105KB8NNNC |
3 | 10uF | C2,C5,C7,C4,C11,C16 | C1206 | 6 | C13585 | LCSC | SAMSUNG | CL31A106KBHNNNE |
4 | 4.7uF | C3 | C0603 | 1 | C1705 | LCSC | SAMSUNG | CL10A475KP8NNNC |
5 | 10uF | C6 | 0603 | 1 | C19666 | LCSC | SAMSUNG | CL10A475KO8NNNC |
6 | 100nF | C8,C9,C10,C13 | C0805 | 4 | C49678 | LCSC | YAGEO | CC0805KRX7R9BB104 |
7 | 22nF | C12 | C0603 | 1 | C21122 | LCSC | SAMSUNG | CL10B223KB8NNNC |
8 | B2B-XH-A (LF)(SN) | CN1 | CONN-TH_B2B-XH-A-LF-SN | 1 | C24192 | LCSC | BOOMELE | XH-2A red RHOS |
9 | XH-4A | CN2 | CONN-TH_4P-P2.50_XH-4A | 1 | C146106 | LCSC | Boom Precision Elec | - |
10 | B550C-13-F | D1 | SMC_L6.9-W5.9-LS7.9-RD | 1 | C134461 | LCSC | Diodes Incorporated | B550C-13-F |
11 | M7_C392013 | D2 | SMA_L4.4-W2.6-LS5.0-RD | 1 | C392013 | LCSC | Guangdong Hottech | M7 |
12 | PJ-307C | J1 | AUDIO-TH_PJ307C | 1 | C16684 | LCSC | BOOMELE | PJ-307C |
13 | 47uH | L1 | IND-SMD_L12.5-W12.5_SWRH1207B | 1 | C60659 | LCSC | Sunlord | SWRH1207B-470MT |
14 | USBMICRO_20329 | MICRO-USB1 | 4UCONN_20329_V2 | 1 | C10418 | LCSC | ValuePro | micro USBFemale |
15 | SWITCH,3*6*5PLASTIC HEAD WHITE,260G, 0.25MM,SMD | PROG1 | SMD-6X3.6 | 1 | C115357 | LCSC | ALPS | SKRKAEE020 |
16 | MMBT2222A | Q2,Q3 | SOT-23(SOT-23-3) | 2 | C171740 | LCSC | SK | MMBT2222A |
17 | 10K | R1,R2,R5 | 0402 | 3 | C25744 | LCSC | UniOhm | 0402WGF1002TCE |
18 | 100 | R3,R14 | 0402 | 2 | C25867 | LCSC | UniOhm | 0402WGF1501TCE |
19 | 1K | R4 | 0402 | 1 | C11702 | LCSC | UniOhm | 0402WGF1001TCE |
20 | 100K | R6 | 0603 | 1 | C25803 | LCSC | UniOhm | 0603WAF1003T5E |
21 | .11R | R8,R9 | 1206 | 2 | C247458 | LCSC | Uniroyal Elec | 1206W4J011KT5E |
22 | 150 | R15 | 0603 | 1 | C22808 | LCSC | UniOhm | 0603WAF1500T5E |
23 | ESP32-WROOM-32D | U1 | ESP32-WROOM-32D | 1 | C473012 | LCSC | ESPRESSIF 乐鑫 | ESP32-WROOM-32D |
24 | CP2104-F03-GM | U2 | QFN-24_4X4X05P | 1 | C47742 | LCSC | SILICON LABS | CP2104-F03-GM |
25 | TMC2209-LA | U3 | QFN-28_L5.0-W5.0-P0.50-BL-EP | 1 | C465949 | LCSC | TRINAMIC Motion Control GmbH | TMC2209-LA |
26 | LM2596SX-3.3/NOPB | U4 | TO-263-5_L10.2-W9.9-P1.70-LS14.4-TL | 1 | C7929 | LCSC | TI | LM2596SX-3.3/NOPB |
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