Tangara mainboard
About the Tangara mainboard PCB
Tangara mainboard is an open source ESP32 PCB design by dpaola2, published on GitHub. It is a 4-layer board measuring 52 × 94.2 mm, with 95 components from 37 distinct parts.
Its main chip is the ESP32-WROVER-E-N16R8, from the ESP32 family. Other key parts include the INA1620RTWR, D5V0L2B3T-7, TLV75533PDBV, PE1605C4A6 and TPS65133DPDR. By type, the board carries 35 resistors, 33 capacitors, 13 ICs, 5 connectors, 3 transistors and 3 switches.
From the project
This is a local schematic correction derived from Tangara hardware commit 9853b4a1dc8a0e3ea3ec75450522e42df12eaa52. Read VALIDATION.md for the exact correction and Codex independent review for verification and unresolved findings. Both routed PCBs are unchanged. Retain the upstre
This is a local schematic correction derived from Tangara hardware commit 9853b4a1dc8a0e3ea3ec75450522e42df12eaa52. Read VALIDATION.md for the exact correction and Codex independent review for verification and unresolved findings. Both routed PCBs are unchanged. Retain the upstream CERN-OHL-S-2.0 license.
The derived source identity is recorded in source-lock.json and the R2 assembly manifest. These sources and exports are not released for fabrication. Earlier reference and vault snapshots remain unchanged.
Main components on the Tangara mainboard
Tangara mainboard bill of materials (BOM)
95 components, 37 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | INA1620RTWR INA1620 | QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm_ThermalVias | U1 |
| 1 | D5V0L2B3T-7 | SOT-523 | U3 |
| 1 | TLV75533PDBV | SOT-23-5 | U4 |
| 1 | PE1605C4A6 | SOT-23-6 | U5 |
| 1 | TPS65133DPDR TPS65133 | SON40P300X300X80-13N | U7 |
| 1 | PCA8575BS,118 PCA8575 | HVQFN-24-1EP_4x4mm_P0.5mm_EP2.1x2.1mm | U9 |
| 1 | MCP73871-2CCI/ML MCP73871 | QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias2 | U10 |
| 1 | BD91N01NUX | BD91N01NUX-E2 | U12 |
| 1 | ATSAMD21E18A-AF | TQFP-32_7x7mm_P0.8mm | U13 |
| 1 | 74CBTLV3257PW-Q10J 74CBTLV3257 | TSSOP-16_4.4x5mm_P0.65mm | U14 |
| 1 | ESP32-WROVER-E-N16R8 ESP32-WROVER-E | ESP32-WROVER | U15 |
| 1 | TPS22948DCKR TPS22948 | SOT65P210X110-6N | U16 |
| 1 | WM8523GEDT/R WM8523 | SSOP-20_4.4x6.5mm_P0.65mm | U17 |
| 1 | PMV48XPA2R | TSOT-23 | Q1 |
| 2 | PJC138K_R1_00001 PJC138K | SOT-323_SC-70 | Q2, Q3 |
| 1 | SJ-3506-SMT-TR SJ-3506-SMT | CUI_SJ-3506-SMT | J1 |
| 1 | GT-F0509SR15-15SMT01 FP Connector | G-Switch GT-F0509SR15-15SMT01 | J2 |
| 1 | DM1AA-SF-PEJ(82) SD_Card | SD_Hirose_DM1AA_SF_PEJ82 | J4 |
| 1 | USB4510-03-1-A USB | GCT_USB4510-03-1-A_REVA | J6 |
| 1 | S3B-PH-K-S(LF)(SN) Battery | JST_PH_S3B-PH-K_1x03_P2.00mm_Horizontal | J7 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | JS102011SAQN SW_SPDT | SW_SPDT_CK-JS102011SAQN | SW1 |
| 2 | EVQ-P40B3M SW_Push | SW_EVQ-P4HB3B | SW2, SW3 |
| 1 | BAT54C | SOT-23 | D4 |
| 2 | 1239AS-H-4R7M=P2 4.7μH | L_1008_2520Metric | L1, L2 |
| 11 | GRM21BR61C106KE15K 10μF | C_0805_2012Metric | C1, C2, C3, C7, C18, C24, C25, C27 +3 |
| 5 | GRM216R61C105KA88D 1μF | C_0805_2012Metric | C4, C12, C23, C33, C41 |
| 2 | GRM1885C1H272JA01J 2700pF | C_0603_1608Metric | C6, C15 |
| 9 | GCM188R71C104KA37J 0.1μF | C_0603_1608Metric | C9, C13, C14, C30, C31, C34, C37, C39 +1 |
| 3 | GRM319R61C226KE15D 22μF | C_1206_3216Metric | C10, C16, C38 |
| 2 | 100pF | C_0603_1608Metric | C17, C19 |
| 1 | GRM32EC70J107ME15K 100uF | C_1210_3225Metric | C29 |
| 1 | 0.1W 5% 10kΩ | R_0603_1608Metric | R1 |
| 24 | AC0603JR-0710KL 10kΩ | R_0603_1608Metric | R2, R4, R5, R9, R10, R11, R12, R21 +16 |
| 2 | RR1220P-222-D 2.2kΩ | R_0805_2012Metric | R3, R8 |
| 2 | RR1220P-561-D 560Ω | R_0805_2012Metric | R6, R15 |
| 4 | AC0603FR-131ML 1MΩ | R_0603_1608Metric | R7, R50, R51, R56 |
| 2 | RC0603DR-071KL 1kΩ | R_0603_1608Metric | R39, R42 |
Tangara mainboard design files
The KiCad project lives in the dpaola2/Harmony repository on GitHub; these links point at the commit this page was built from.
Tangara mainboard: common questions
What microcontroller does the Tangara mainboard use?
The Tangara mainboard is built around the ESP32-WROVER-E-N16R8, from the ESP32 family.
How big is the Tangara mainboard PCB?
The Tangara mainboard measures 52 × 94.2 mm, has 4 copper layers and is 1.60252 mm thick.
How many components are on the Tangara mainboard?
95 components, from 37 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 Tangara mainboard design files?
From the dpaola2/Harmony 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 Tangara mainboard design in my own project?
The repository has no license, so all rights stay with dpaola2. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Tangara mainboard 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.
More boards in Harmony
Routed base
66 × 169 mm36 parts4LNo license0
Harmony mark6-carrier
66.2 × 169 mm36 parts4LNo license0
Tangara faceplate
52 × 94.2 mm22 parts2LNo license0
Faceplate refilled native
52 × 94.2 mm22 parts2LNo license0
Faceplate net aware before refill
52 × 94.2 mm22 parts2LNo license0
Faceplate before
52 × 94.2 mm22 parts2LNo license0
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k