V2 mini
About the V2 mini PCB
V2 mini is an open source ESP32 PCB design by teehee567, published on GitHub. It is a 6-layer board measuring 60.8 × 35.1 mm, with 112 components from 50 distinct parts.
Its main chip is the ESP32-S31-WROOM-3-N16R16V, from the ESP32 family. Other key parts include the UM980, SCH16T-K01-1, LP5813ADRRR, TCA9536ADTMR and TPD4EUSB30DQAR. By type, the board carries 41 capacitors, 35 resistors, 10 ICs, 7 switches, 6 diodes and 6 inductors.
It belongs with the rf & radio, iot & wireless and power & battery designs in this gallery.
From the project
gnss module collecting track data
Aevia is a DIY, battery powered lap timer and track data logger. The current hardware is the V2 Mini, a compact board that combines multi-band GNSS, a 6-axis IMU, local storage, a display interface, physical controls, and wireless connectivity.
Uses very very high end sensors, UM980, SCH16T-K01
The goal is to build something in the same general space as a Garmin Catalyst, but at a lower cost and with more control over the hardware, raw data, and software. Recorded data should also remain useful outside the device, with export to proper desktop analysis tools.
Main components on the V2 mini
V2 mini bill of materials (BOM)
112 components, 50 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | UM980 Unicore Comm | XCVR_UM980 | U1 |
| 1 | ESP32-S31-WROOM-3-N16R16V ~ | ESP32-S31-WROOM-3 | U2 |
| 1 | SCH16T-K01-1 Murata | XDCR_SCH16T-K01-1 | U3 |
| 1 | LP5813ADRRR Texas Instruments | IC_LP5813ADRRR | U4 |
| 1 | TCA9536ADTMR | X2SON8_DTM_TEX | U5 |
| 1 | TPD4EUSB30DQAR TPD4EUSB30 | USON-10_2.5x1.0mm_P0.5mm | U6 |
| 1 | MAX16169AALTA+T | 21-0164_L622&plus_1_ADI | U7 |
| 1 | BQ25622ERYKR | WQFN-HR18__RYK_TEX | U8 |
| 1 | MAX17048G+T10 MAX17048G_T10 | SON50P200X200X80-9N | U9 |
| 1 | TPS63802DLAR Texas Instruments | VREG_TPS63802DLAR | U10 |
| 1 | NTNS3164NZT5G | SOT-883 | Q1 |
| 1 | U.FL-R-SMT-1(01) Conn_Coaxial | U.FL_Hirose_U.FL-R-SMT-1_Vertical | J1 |
| 1 | GTFP08441BEU Amphenol | AMPHENOL_GTFP08441BEU | J2 |
| 1 | SFV24R-2STE1HLF Amphenol | AMPHENOL_SFV24R-2STE1HLF | J3 |
| 1 | DF58-2P-1.2V(21) Battery | HRS_DF58-2P-1.2V_21_ | J4 |
| 1 | USB4105-GF-A GCT | GCT_USB4105-GF-A | J6 |
| 7 | B3U-1000P SW_Push | SW_SPST_B3U-1000P | SW1, SW2, SW3, SW4, SW5, SW6, SW7 |
| 1 | NCU18XH103F60RB 103KT1608T-1P | R_0603_1608Metric | TH1 |
| 1 | TPD1E0B04DPYR ~ | Texas_DPY0002A_0.6x1mm_P0.65mm | D1 |
| 1 | ESDS311DYFR ~ | D_SOD-323F | D2 |
Show 30 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | MSL0402RGBU1 | LED_MSL04_ROM | D32, D33, D34, D35 |
| 2 | MPZ2012S601ATD25 BLM21SP601SN1D | L_0805_2012Metric | FB1, FB2 |
| 1 | LQW18AN68NJ00D 68nH | L_0603_1608Metric | L1 |
| 2 | DFE252012F-1R0M=P2 1uH | L_1008_2520Metric | L2, L4 |
| 1 | CIGT201610EHR47MNE 0.47uH Samsung Electro-Mechanics | L_Samsung_CIGT201610 | L5 |
| 2 | GRM1555C1H101JA01D 100pF Murata Electronics | C_0402_1005Metric | C1, C3 |
| 12 | CL05B104KO5NNNC 100nF Samsung Electro-Mechanics | C_0402_1005Metric | C2, C8, C9, C11, C13, C15, C21, C22 +4 |
| 6 | C2012X5R1V106K125AC 10uF TDK | C_0805_2012Metric | C4, C5, C6, C7, C20, C35 |
| 5 | CC0805MKX5R8BB226 22uF YAGEO | C_0805_2012Metric | C10, C28, C30, C31, C32 |
| 4 | DNP | C_0402_1005Metric | C12, C24, C25, C26 |
| 5 | CL10A106KP8NNND 10uF Samsung Electro-Mechanics | C_0603_1608Metric | C14, C23, C27, C33, C36 |
| 1 | MCASG168AB7105KTNA01 1uF Taiyo Yuden | C_0603_1608Metric | C16 |
| 1 | GRM155R71E473KA88D 47nF Murata Electronics | C_0402_1005Metric | C17 |
| 1 | GRM188R61E475KE11D 4.7uF Murata Electronics | C_0603_1608Metric | C18 |
| 1 | CL05B104KB54PNC 100nF Samsung Electro-Mechanics | C_0402_1005Metric | C19 |
| 1 | GRT188R61A226ME13D 22uF Murata Electronics | C_0603_1608Metric | C34 |
| 2 | CL05A105KA5NQNC 1uF Samsung Electro-Mechanics | C_0402_1005Metric | C37, C39 |
| 14 | RC0402FR-0710KL 10k YAGEO | R_0402_1005Metric | R1, R2, R3, R6, R7, R8, R9, R20 +6 |
| 1 | RC0402FR-0715RL 15 | R_0402_1005Metric | R4 |
| 2 | RC0402FR-07100KL 100k YAGEO | R_0402_1005Metric | R5, R29 |
| 5 | RC0402FR-0722RL 22 YAGEO | R_0402_1005Metric | R10, R17, R19, R30, R31 |
| 4 | RC0402FR-075K1L 5.1k YAGEO | R_0402_1005Metric | R11, R12, R16, R21 |
| 1 | RC0402FR-075K62L 5.62k | R_0402_1005Metric | R13 |
| 1 | RC0402FR-075K23L 5.23k | R_0402_1005Metric | R14 |
| 1 | CRCW040230K1FKED 30.1k | R_0402_1005Metric | R15 |
| 1 | RC0402FR-07499RL 499 | R_0402_1005Metric | R18 |
| 1 | RC0603FR-07511KL 511k | R_0603_1608Metric | R25 |
| 1 | RC0603FR-0791KL 91k | R_0603_1608Metric | R26 |
| 1 | RMCF0402FT75K0 75k Stackpole Electronics Inc | R_0402_1005Metric | R28 |
| 2 | RC0402FR-0722KL 22k YAGEO | R_0402_1005Metric | R32, R33 |
V2 mini design files
The KiCad project lives in the teehee567/Aevia repository on GitHub; these links point at the commit this page was built from.
V2 mini: common questions
What microcontroller does the V2 mini use?
The V2 mini is built around the ESP32-S31-WROOM-3-N16R16V, from the ESP32 family.
How big is the V2 mini PCB?
The V2 mini measures 60.8 × 35.1 mm, has 6 copper layers and is 1.5584 mm thick.
How many components are on the V2 mini?
112 components, from 50 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 V2 mini design files?
From the teehee567/Aevia 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 V2 mini design in my own project?
The repository has no license, so all rights stay with teehee567. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the V2 mini 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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