Datalogger-HW
About the Datalogger-HW PCB
Datalogger-HW is an open source ESP32 PCB design by Velli20, published on GitHub under the MIT license. It is a 4-layer board measuring 100 × 99 mm, with 101 components from 41 distinct parts.
Its main chip is the ESP-WROOM-02U, from the ESP32 family. Other key parts include the GD25Q16CTIGR, CNY17-1, STM32L4S5VITx and FT230XS-Interface_USB. By type, the board carries 34 resistors, 19 capacitors, 12 ICs, 10 connectors, 9 transistors and 5 diodes.
Main components on the Datalogger-HW
Datalogger-HW bill of materials (BOM)
101 components, 41 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | GD25Q16CTIGR | GD25Q127CSIGR | IC1 |
| 8 | CNY17-1 | CNY17-4X009T | U1, U5, U6, U7, U8, U9, U10, U11 |
| 1 | STM32L4S5VITx | LQFP-100_14x14mm_P0.5mm | U3 |
| 1 | FT230XS-Interface_USB | SSOP-16_3.9x4.9mm_P0.635mm | U4 |
| 1 | ESP-WROOM-02U | ESP-WROOM-02U | U12 |
| 9 | BSS84 | SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +1 |
| 1 | 32.786kHz | ECS-327-7-16-C-TR | Y1 |
| 2 | USB_B_Mini | USB_Micro-B_Molex-105017-0001 | J1, J2 |
| 1 | Micro_SD_Card | Molex-104031-0811 | J3 |
| 1 | SWD | Harwin-M50-3610542R | J4 |
| 2 | 1-2834016-6 | TE-Connectivity-1-2834016-6 | J5, J6 |
| 1 | OLED | SSD1306_Display_Module | J7 |
| 3 | 1017516 | Phoenix-Contact-1017516 | J8, J9, J10 |
| 1 | S8411-45R | Harwin-S8411-45R | BT1 |
| 2 | Jumper_2_Open | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1, JP2 |
| 1 | AP3211KTR-G1 | AP3211KTR-G1 | PS1 |
| 1 | TDD01H0SB1R | TDD01H0SB1R | S1 |
| 1 | TLS A 070 T3J LFS RESET | TLSA100JLFS | S2 |
| 1 | SKRHABE010 | SKRHABE010 | S3 |
| 1 | 5019 | Keystone-5019 | TP1 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | B5819W-TP | B5819W-TP | D1, D6 |
| 3 | LED | LED_0805_2012Metric | D2, D3, D4 |
| 1 | 600 ohms @ 600 Mhz | L_0805_2012Metric | FB1 |
| 1 | 600 @ 100MHz | L_0603_1608Metric | FB2 |
| 1 | 4.7uH | SRP04124R7K | L1 |
| 2 | 10uF | C_0805_2012Metric | C1, C6 |
| 1 | 10nF | C_0805_2012Metric | C2 |
| 12 | 100nF | C_0603_1608Metric | C3, C4, C9, C10, C11, C12, C13, C14 +4 |
| 1 | 22uF | C_0805_2012Metric | C5 |
| 2 | 5.1pF | C_0805_2012Metric | C7, C8 |
| 1 | 1uF | C_0603_1608Metric | C16 |
| 8 | 4.7k | R_0805_2012Metric | R1, R5, R7, R11, R13, R15, R17, R19 |
| 10 | 10k | R_0603_1608Metric | R2, R6, R8, R9, R12, R14, R16, R18 +2 |
| 2 | 27 | R_0603_1608Metric | R3, R4 |
| 3 | 1k | R_0805_2012Metric | R10, R22, R23 |
| 1 | 49.9k | R_0805_2012Metric | R24 |
| 1 | 16.3k | R_0805_2012Metric | R25 |
| 1 | 100 | R_0603_1608Metric | R26 |
| 1 | 100k | R_0805_2012Metric | R27 |
| 1 | 68k | R_0805_2012Metric | R28 |
| 6 | 2k2 | R_0603_1608Metric | R30, R31, R32, R33, R34, R35 |
Datalogger-HW design files
The KiCad project lives in the Velli20/Datalogger-HW repository on GitHub; these links point at the commit this page was built from.
- LayoutDatalogger.kicad_pcb
- SchematicDatalogger.kicad_sch
Datalogger-HW: common questions
What microcontroller does the Datalogger-HW use?
The Datalogger-HW is built around the ESP-WROOM-02U, from the ESP32 family.
How big is the Datalogger-HW PCB?
The Datalogger-HW measures 100 × 99 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Datalogger-HW?
101 components, from 41 distinct parts. The full bill of materials is listed on this page.
Where can I download the Datalogger-HW design files?
From the Velli20/Datalogger-HW 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-HW design in my own project?
Yes, under the terms of its MIT license, which Velli20 chose for the repository.
Can I test firmware for the Datalogger-HW without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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