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Completed
STD Lego train BLE controller (ESP32)
License: GPL 3.0
Mode: Editors' pick
- 0
Update time：
2024-02-15 09:01:18
Creation time：
2024-01-08 19:49:27
Description
Lego (and non-lego) train controller.
- ESP32 module with BLE and WiFi
- 2 channels with PWM for motor control
- 2 channels for LED (and other devices) control with open-drain ouput
- Horn on-board
- Fits 4x8 studs block
This board is adjusted to be ordered directly via EasyEDA service. Connectors are provided on board for example, i recommend to solder wires directly, to easy fit info train.
Board is controlled via free version of RemoteXY app and holds config onboard.
Firmware source: https://github.com/petrows/train-controller-esp32 (provided config for PlatformIO IDE).
To flash controller, short pin 25 (located just near "G" pin of UART) and "G" UART pin while powering on.
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity | Manufacturer Part | Manufacturer | Supplier | JLCPCB Part Class | spiceSymbolName | sourceId | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 100nF | C1,C5,C6 | C0805 | 3 | CL21F104MBCNNNC | SAMSUNG(三星) | LCSC | C913947 | Extended Part | CL21F104MBCNNNC | |
| 2 | 22uF | C2,C4 | C0603 | 2 | CL10A226MQ8NRNL | SAMSUNG(三星) | LCSC | C327470 | Extended Part | CL10A226MQ8NRNL | |
| 3 | 1uF | C3 | C0603 | 1 | 0603B105K250NT | FH(风华) | LCSC | C59302 | Extended Part | 0603B105K250NT | |
| 4 | TS-1101-C-W | EN | SW-SMD_L6.0-W3.3-LS8.0 | 1 | TS-1101-C-W | XKB Connectivity(中国星坤) | LCSC | C318938 | Extended Part | TS-1101-C-W | |
| 5 | 2n3904S | Q1,Q2 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-TR | 2 | 2N3904S-RTK/PS | KEC | LCSC | C18536 | Extended Part | 2n3904S-RTK/PS_C18536 | |
| 6 | 11kΩ | R1 | R0603 | 1 | HPCR0603F11K0K9 | RESI(开步睿思） | LCSC | C363254 | Extended Part | HPCR0603F11K0K9 | |
| 7 | 16.2kΩ | R2 | R0603 | 1 | CR0603-FX-1622ELF | BOURNS | LCSC | C203334 | Extended Part | CR0603-FX-1622ELF | |
| 8 | 9.31kΩ | R3 | R0603 | 1 | CR0603-FX-9311ELF | BOURNS | LCSC | C203890 | Extended Part | CR0603-FX-9311ELF | |
| 9 | 1.15kΩ | R5,R6 | R0603 | 2 | CR0603D1K15P05Z | EVER OHMS(天二科技) | LCSC | C332111 | Extended Part | CR0603D1K15P05 | |
| 10 | ESP32-WROOM-32E(8MB) | U1 | WIFI-SMD_ESP32-WROOM-32E | 1 | ESP32-WROOM-32E-N8 | ESPRESSIF(乐鑫) | LCSC | C701342 | Extended Part | ESP32-WROOM-32E(8MB) | |
| 11 | AMS1117-3.3 | U2 | SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR | 1 | AMS1117-3.3 | AMS | LCSC | C6186 | Basic Part | AMS1117-3.3 | 1476261164 |
| 12 | L9110S_C2984833 | U3,U4 | SOP-8_L5.0-W4.0-P1.27-LS6.2-BL | 2 | L9110S | LANKE(兰科) | LCSC | C2984833 | Extended Part | L9110S_C2984833 |
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