Primis FaceTracker
About the Primis FaceTracker PCB
Primis FaceTracker is an open source ESP32 PCB design by Nieko27, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 95 × 48 mm, with 44 components from 36 distinct parts.
Its main chip is the NRF52833_QDXX, from the ESP32 family. Other key parts include the LSM6DSV16XTR, QMC6309 and MCP73831T-2ATI_OT. By type, the board carries 15 capacitors, 15 resistors, 5 diodes, 4 ICs, 2 connectors and 2 switches.
It belongs with the power & battery designs in this gallery.
From the project
A repo for all things steam frame hardware.
Main components on the Primis FaceTracker
Primis FaceTracker bill of materials (BOM)
44 components, 36 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NRF52833_QDXX ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1 | U1 |
| 1 | LSM6DSV16XTR AMS1117-3.3 | SOT-223-3_TabPin2 | U2 |
| 1 | QMC6309 XC6206P122MR | SOT-23-3 | U3 |
| 1 | MCP73831T-2ATI_OT XC6206P282MR | SOT-23-3 | U5 |
| 1 | PMOS | SOT-23 | Q1 |
| 1 | KH-FG0.5-H2.0-24PIN | FPC-SMD_KH-FG0.5-H2.0-24PIN | CN2 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | SW_DPST_X2 SW_SPST | SW_SPST_TS-1088-xR020 | SW1 |
| 1 | SW_SPST | SW_SPST_TS-1088-xR020 | SW2 |
| 4 | LED | LED_0805_2012Metric | D1, D3, D4, D5 |
| 1 | XL-1615RGBC-RF LED | LED_0805_2012Metric | D2 |
| 3 | 100NF 10uf | C_0805_2012Metric | C1, C8, C10 |
| 1 | 4.7UF 22uf | C_0805_2012Metric | C2 |
| 1 | 12PF 100nf | C_0603_1608Metric | C3 |
| 1 | 12PF 10uf | C_0805_2012Metric | C4 |
| 1 | 0.8PF 100uf | C_1206_3216Metric | C5 |
| 1 | 1.0PF 1uf | C_0603_1608Metric | C6 |
| 1 | 4.7UF 100nf | C_0603_1608Metric | C7 |
| 1 | 4.7UF 10uf | C_0805_2012Metric | C9 |
| 1 | 1.0UF 0.1uf | C_0603_1608Metric | C11 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 100NF 0.1uf | C_0603_1608Metric | C12, C13 |
| 1 | 12PF 0.1uf | C_0603_1608Metric | C14 |
| 1 | 15pF | C_0603_1608Metric | C15 |
| 1 | 4.7K 10k | R_0805_2012Metric | R1 |
| 2 | 4.7K 68r | R_0603_1608Metric | R2, R4 |
| 2 | 68r | R_0603_1608Metric | R3, R5 |
| 1 | 5.1k | R_0805_2012Metric | R6 |
| 1 | 5.1K 5.1k | R_0805_2012Metric | R7 |
| 1 | 10k | R_0805_2012Metric | R8 |
| 1 | 5.1K 100r | R_0603_1608Metric | R9 |
| 1 | 10K 1k | R_0805_2012Metric | R10 |
| 1 | 5.6K 1k | R_0805_2012Metric | R11 |
| 1 | 4.7k | R_0805_2012Metric | R12 |
| 1 | 470R 4.7k | R_0805_2012Metric | R13 |
| 1 | 100R 1k | R_0805_2012Metric | R14 |
| 1 | 100R 4.7k | R_0805_2012Metric | R15 |
Primis FaceTracker design files
The KiCad project lives in the Nieko27/Frame-Workshop repository on GitHub; these links point at the commit this page was built from.
Primis FaceTracker: common questions
What microcontroller does the Primis FaceTracker use?
The Primis FaceTracker is built around the NRF52833_QDXX, from the ESP32 family.
How big is the Primis FaceTracker PCB?
The Primis FaceTracker measures 95 × 48 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Primis FaceTracker?
44 components, from 36 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Primis FaceTracker design files?
From the Nieko27/Frame-Workshop repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Primis FaceTracker design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which Nieko27 chose for the repository.
Can I test firmware for the Primis FaceTracker 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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