Airgradient-GO
About the Airgradient-GO PCB
Airgradient-GO is an open source ESP32 PCB design by Open-Air-Foundation, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 62.9 × 87 mm, with 141 components from 69 distinct parts.
Its main chip is the ESP32-C5-MINI-1, from the ESP32 family. Other key parts include the W25N512GVEIG, TPS63802DLAR, BQ25628RYKR, TPL5010DDCR and TPS7A0228DQNR. By type, the board carries 59 capacitors, 38 resistors, 17 ICs, 7 diodes, 4 transistors and 4 connectors.
It belongs with the iot & wireless, power & battery and sensors designs in this gallery.
From the project
AirGradient GO is a handheld air quality monitor. It measures particulate matter (Sensirion SPS30), CO₂ (Senseair S12), VOC/NOx (SGP41), temperature and humidity (SHT4x), and barometric pressure (DPS368), with an accelerometer (LIS2DH12) for motion detection and a GPS receiver (T
AirGradient GO is a handheld air quality monitor. It measures particulate matter (Sensirion SPS30), CO₂ (Senseair S12), VOC/NOx (SGP41), temperature and humidity (SHT4x), and barometric pressure (DPS368), with an accelerometer (LIS2DH12) for motion detection and a GPS receiver (TAU1113) for location. Readings are shown on a 2.13″ black-and-white e-paper display with RGB LED indicators and capacitive touch controls. The device runs on a 505060 Li-Po pouch cell charged over USB-C.
Main components on the Airgradient-GO
Airgradient-GO bill of materials (BOM)
141 components, 69 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | W25N512GVEIG | WSON-8_L8.0-W6.0-P1.27-TL-1 | U1 |
| 1 | TPS63802DLAR | VSON-10_L3.0-W2.0-P0.50-TL | U2 |
| 1 | BQ25628RYKR | WQFN-18_L3.0-W2.5-P0.40-TL | U3 |
| 1 | ESP32-C5-MINI-1 | ESP32-C5-MINI-1 | U4 |
| 1 | TPL5010DDCR | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | U5 |
| 1 | TPS7A0228DQNR | X2SON-4_L1.0-W1.0-P0.65-TL-EP | U7 |
| 1 | BQ27427YZFR | DSBGA-9_L1.6-W1.6-R3-C3-P0.50-TL | U8 |
| 1 | SGP41-D-R4 | XDCR_SGP41-D-R4 | U9 |
| 1 | TMUX121NKGR_C22428404 | UQFN-10_L1.8-W1.4-P0.40-BL | U10 |
| 1 | LIS2DH12TR | LGA-12_L2.0-W2.0-P0.50-BL | U11 |
| 1 | HYG-8503A | BUZ-SMD_4P-L8.5-W8.5-P8.50-BR | U12 |
| 1 | SHT4X SHT4x | Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | U13 |
| 1 | ZDSD512MLGEAG | LGA-8_L8.0-W6.0-P1.27-TL | U14 |
| 1 | DPS368XTSA1 | LGA-8_L2.5-W2.0-P0.65-TR_DPS368 | U15 |
| 1 | TAU1113 | TAU1113 | U16 |
| 1 | S12 | S12 | U17 |
| 1 | TCA9536DTMR | X2SON-8_L1.4-W0.8-P0.50-BL | U18 |
| 1 | SIA445EDJ-T1-GE3 | SC-70-6L_L2.0-W2.0-P0.65-BL | Q1 |
| 1 | ZVN4106FTA_C508255 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q2 |
| 1 | SS8050-G | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q3 |
Show 49 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SI1308EDL | SOT-323-3_L2.0-W1.3-P1.30-LS2.1-BR | Q4 |
| 1 | C160402 SM02B-SRSS-TB (LF)(SN) | CONN-SMD_2P-P1.00_SM02B-SRSS-TB-LF-SN | CN1 |
| 2 | C160391 BM05B-SRSS-TB(LF)(SN) | CONN-SMD-5P-P1.00_BM05B-SRSS-TB-LF-SN | CN2, CN3 |
| 1 | HCZZ0039-4 | CONN-SMD_HCZZ0039-4 | CN4 |
| 1 | GPS1003 | ANT-SMD_L10.0-W3.0 | ANT1 |
| 1 | BSMD1206-075-6V | F1206 | F1 |
| 1 | C6081230 FPC 0.5-24P LTH2.0 | FPC-SMD_FPC-0.5-24P-LTH2.0 | FPC1 |
| 1 | KNTC0805/10KF3950 | R0805 | NTC1 |
| 2 | TS-1091C-A1B3-D2 | KEY-SMD_3P-L5.5-W3.8-P3.00 | SW1, SW2 |
| 1 | +3.1V | TestPoint_Keystone_5019_Miniature | TP5 |
| 1 | +5V | TestPoint_Keystone_5019_Miniature | TP8 |
| 1 | GT-USB-7010ASV | USB-C-SMD_G-SWITCH_GT-USB-7010ASV | USB1 |
| 3 | C282565 PMEG3005EL,315 | SOD-882_L1.0-W0.6-RD | D1, D2, D3 |
| 4 | C146335 CUS10S30,H3F | SOD-323_L1.8-W1.3-LS2.5-RD | D4, D5, D6, D7 |
| 1 | 252012CDMCDDS-1R0MC | IND-SMD_L2.5-W2.0 | L1 |
| 1 | XGL4020-471MEC | IND-SMD_L4.0-W4.0_XGL4020 | L2 |
| 1 | XRTC201210S100MBCA | L0805 | L3 |
| 12 | 0.1UF/25V 0.1uF/25V | C0402 | C1, C6, C12, C14, C29, C33, C46, C49 +4 |
| 1 | 47NF/25V 47nF/25V | C0402 | C2 |
| 6 | 10UF/25V 10uF/25V | C0603 | C3, C4, C11, C15, C53, C59 |
| 4 | 22UF/25V 22uF/25V | C0805 | C5, C8, C13, C17 |
| 2 | 10UF/10V 10uF/10V | C0402 | C7, C10 |
| 21 | 1UF/50V 1uF/50V | C0402 | C9, C19, C26, C27, C31, C34, C35, C36 +13 |
| 3 | 4.7UF/25V 4.7uF/25V | C0402 | C16, C30, C32 |
| 2 | DNP | C_1206_3216Metric | C18, C24 |
| 1 | 47UF/25V 47uF/25V | C1206 | C20 |
| 2 | 1nF/50V | C0402 | C21, C22 |
| 1 | 500PF/50V 500pF/50V | C0603 | C23 |
| 1 | 10nF/10V | C0402 | C25 |
| 1 | 2.2UF/16V 2.2uF/16V | C0402 | C28 |
| 2 | DNP | C_0402_1005Metric | C47, C51 |
| 6 | 100K | R0402 | R1, R5, R8, R23, R31, R33 |
| 13 | 10K | R0402 | R2, R3, R10, R14, R19, R22, R24, R26 +5 |
| 1 | 475K | R0402 | R4 |
| 1 | 91K | R0402 | R6 |
| 2 | 5.1K | R0402 | R7, R9 |
| 1 | 4.12K | R0402 | R11 |
| 1 | 17.33K | R0402 | R12 |
| 1 | 2.49K | R0402 | R13 |
| 1 | 51K | R0402 | R16 |
| 1 | 15K | R0402 | R17 |
| 1 | 20K | R0402 | R18 |
| 2 | 22R | R0402 | R20, R21 |
| 2 | C106231 0R | R0402 | R25, R39 |
| 1 | 0R | R0402 | R29 |
| 1 | 1M | R0402 | R32 |
| 1 | 2.2R | R0402 | R34 |
| 1 | 4.7R | R0402 | R35 |
| 1 | 1K | R0402 | R38 |
Airgradient-GO design files
The KiCad project lives in the Open-Air-Foundation/pcb-go repository on GitHub; these links point at the commit this page was built from.
Airgradient-GO: common questions
What microcontroller does the Airgradient-GO use?
The Airgradient-GO is built around the ESP32-C5-MINI-1, from the ESP32 family.
How big is the Airgradient-GO PCB?
The Airgradient-GO measures 62.9 × 87 mm, has 4 copper layers and is 0.8 mm thick.
How many components are on the Airgradient-GO?
141 components, from 69 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 Airgradient-GO design files?
From the Open-Air-Foundation/pcb-go 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 Airgradient-GO design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which Open-Air-Foundation chose for the repository.
Can I test firmware for the Airgradient-GO 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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