Datalogger
About the Datalogger PCB
Datalogger is an open source STM32 PCB design by ncku-formula-racing, published on GitHub. It is a 2-layer board measuring 72.9 × 60 mm, with 83 components from 45 distinct parts.
Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the SN65HVD256D, AP2204K-ADJ and AP63200WU. By type, the board carries 25 capacitors, 19 resistors, 11 diodes, 7 test points, 6 connectors and 4 ICs.
From the project
A monorepo of circuit boards
Main components on the Datalogger
Datalogger bill of materials (BOM)
83 components, 45 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN65HVD256D | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | STM32F103C8Tx | LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | AP2204K-ADJ | SOT-23-5 | U3 |
| 1 | AP63200WU | TSOT-23-6 | U5 |
| 1 | 8M | Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | Y1 |
| 1 | 32.768k | Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | Y2 |
| 1 | RJ12 | RJ12_Amphenol_54601-x06_Horizontal | J1 |
| 1 | PROG | PinHeader_1x03_P2.54mm_Vertical | J2 |
| 2 | PWR | PinHeader_1x02_P2.54mm_Vertical | J3, J6 |
| 1 | Micro_SD_Card_Det1 | microSD_HC_Molex_47219-2001 | J4 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_G-Switch_GT-USB-7051x | J5 |
| 1 | USB_5V | TestPoint_THTPad_D1.5mm_Drill0.7mm | 5V1 |
| 1 | CAN_P | TestPoint_THTPad_D1.5mm_Drill0.7mm | CAN+1 |
| 1 | CAN_N | TestPoint_THTPad_D1.5mm_Drill0.7mm | CAN-1 |
| 1 | GND | TestPoint_THTPad_D1.5mm_Drill0.7mm | GND1 |
| 1 | USB_gnd | TestPoint_THTPad_D1.5mm_Drill0.7mm | GND2 |
| 1 | J_CAN | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | SW_SPST | SW_SPST_FSMSM | SW1 |
| 1 | TP_5V | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP1 |
| 1 | TP_3V3 | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP2 |
Show 25 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TestPoint | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP3 |
| 1 | Shutdown | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP11 |
| 3 | GND | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP12, TP13, TP14 |
| 1 | VDD | TestPoint_THTPad_D1.5mm_Drill0.7mm | VDC1 |
| 3 | LED | LED_0805_2012Metric | D1, D2, D3 |
| 1 | BAT46 | D_SOD-123 | D4 |
| 4 | WS2812B | LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D5, D6, D7, D8 |
| 1 | DESD2CAN2SOQ | TSOT-23 | D9 |
| 1 | USB_D+ | TestPoint_THTPad_D1.5mm_Drill0.7mm | D+1 |
| 1 | USB_D- | TestPoint_THTPad_D1.5mm_Drill0.7mm | D-1 |
| 1 | 15uH | L_Coilcraft_XAL6060-XXX | L1 |
| 6 | 1u | C_0805_2012Metric | C1, C5, C14, C15, C17, C19 |
| 9 | 100n | C_0603_1608Metric | C2, C3, C4, C10, C11, C12, C13, C18 +1 |
| 4 | 20p | C_0603_1608Metric | C6, C7, C8, C9 |
| 3 | 10u | C_0805_2012Metric | C16, C20, C21 |
| 1 | 12p | C_0603_1608Metric | C23 |
| 2 | 22u | C_0805_2012Metric | C24, C25 |
| 2 | 60 | R_0603_1608Metric | R1, R2 |
| 10 | 10k | R_0603_1608Metric | R3, R5, R8, R9, R10, R13, R14, R15 +2 |
| 1 | 100k | R_0603_1608Metric | R4 |
| 1 | 166k | R_0603_1608Metric | R6 |
| 2 | 5k1 | R_0603_1608Metric | R11, R12 |
| 1 | 1.5k | R_0603_1608Metric | R18 |
| 1 | 534k | R_0603_1608Metric | R19 |
| 1 | 30k1 | R_0603_1608Metric | R20 |
Datalogger design files
The KiCad project lives in the ncku-formula-racing/circuit repository on GitHub; these links point at the commit this page was built from.
- Layoutblack-box/datalogger.kicad_pcb
- Schematicblack-box/datalogger.kicad_sch
Datalogger: common questions
What microcontroller does the Datalogger use?
The Datalogger is built around the STM32F103C8Tx, from the STM32 family.
How big is the Datalogger PCB?
The Datalogger measures 72.9 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Datalogger?
83 components, from 45 distinct parts. The full bill of materials is listed on this page.
Where can I download the Datalogger design files?
From the ncku-formula-racing/circuit repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Datalogger design in my own project?
The repository has no license, so all rights stay with ncku-formula-racing. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Datalogger without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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