devicefuture/digicron2Software and hardware for the DigiCron smartwatch.
Digicron is an open-source printed circuit board by devicefuture, from the devicefuture/digicron repository on GitHub, published under the MIT licence. It is a 2-layer board of 36 × 38 mm with 56 parts on 94 nets, routed with 1,123 tracks and 92 vias.
It is built around the MDBT50Q-U1MV2, BME280 and HCMS-3917, with the ADXL345BCCZ-RL, RT9080-33GJ5 and 12401598E4#2A among its other parts. Its parts include 18 resistors, 9 connectors, 8 capacitors, 8 ICs and 4 diodes. It belongs with the nRF52 and nRF5x boards of this library.
Software and hardware for the DigiCron smartwatch.
Want to try out the DigiCron's firmware in your browser? Just visit the DigiCron Simulator!
You must clone this repo like this:
git clone --recurse-submodules https://github.com/devicefuture/digicron--recurse-submodules must be used because this repo contains Git submodules which are used as libraries for the firmware and simulator.
Before building the firmware for the first time, you will need to install the development dependencies:
./build.sh --install-devTo build the firmware and upload it to the target device over USB, run:
./build.sh --uploadYou can also check for compilation errors without uploading by removing the --upload flag.
To build the firmware and the simulator, run:
./build.sh --simThen to run the simulator locally, you need to start a web server in this directory. You can run the following to start the web server at localhost:8000:
python3 -m http.server| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R202, R203, R205, R206, R207 |
| 4 | 10K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R102, R104, R106, R107 |
| 4 | Solder pad | Connector_Wire:SolderWirePad_1x01_SMD_1x2mm | J100, J101, J102, J103 |
| 4 | Solder pad | TestPoint:TestPoint_Pad_2.0x2.0mm | J201, J202, J203, J204 |
| 3 | 10u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C200, C201, C205 |
| 3 | 22u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C202, C203, C204 |
| 2 | 100 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R101, R103 |
| 2 | 22 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R209, R210 |
| 2 | 25p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C206, C207 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R200, R201 |
| 2 | HCMS-3917 | HCMS-x91x:DIP26_HCMS-290X-B_BRA | U101, U102 |
| 2 | SW_Push_Dual | SMD_SW_6mm:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW200, SW201 |
| 1 | 12401598E4#2A | USB-C:12401598E4#2A | X200 |
| 1 | 14 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R100 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D101 |
| 1 | 1u | Inductor_SMD:L_1008_2520Metric_Pad1.43x2.20mm_HandSolder | L200 |
| 1 | 4.7K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R208 |
| 1 | 732K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R204 |
| 1 | ADXL345BCCZ-RL | ADXL345:LGA_CC-14-1_ADI | U104 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q101 |
| 1 | AO3401A | AO3401A:SOT-23-3L_AOS | Q200 |
| 1 | BAT54CW | Package_TO_SOT_SMD:SOT-323_SC-70 | D201 |
| 1 | BME280 | Package_LGA:Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U105 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q100 |
| 1 | Conn_Receptacle_2P | Connector_Molex:Molex_PicoBlade_53261-0271_1x02-1MP_P1.25mm_Horizontal | J200 |
| 1 | ECX-.327-CDX-1293 | ECX-.327-CDX-1293:XTAL_ECS-.327-12.5-34RR-TR | XTAL200 |
| 1 | IR LED | LED_THT:LED_D5.0mm_Horizontal_O1.27mm_Z3.0mm_IRBlack | D100 |
| 1 | MBR0540 | Diode_SMD:D_SOD-123 | D200 |
| 1 | MCP73831-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U202 |
| 1 | MDBT50Q-U1MV2 | RF_Module:Raytac_MDBT50Q | U100 |
| 1 | MU-AS90R | MU-AS90R:MU-AS90R | SW202 |
| 1 | RT9080-33GJ5 | RT9080:TSOT-23-5_RIT | U200 |
| 1 | TPS61023DRLR | TPS61023:DRL0006A | U201 |
It measures 36 × 38 mm and has 2 copper layers, 1.6 mm thick.
56 parts, built around the MDBT50Q-U1MV2, BME280, HCMS-3917 and ADXL345BCCZ-RL. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the devicefuture/digicron repository on GitHub, at the commit this page was made from: the board is hardware/DigiCron.kicad_pcb and its schematic hardware/DigiCron.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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