
Airquality
MorgenWebDigital/airquality
A battery-powered indoor air quality monitor. Real CO₂ from a photoacoustic sensor, VOC and NOx, temperature, humidity and ambient light, shown on a 2.13" e-paper display and sent over Bluetooth LE.

PCB for OpenTANI
TL Node Rev.0 is an open-source printed circuit board by 00TLalu, from the 00TLalu/TL-Node-Hardware repository on GitHub. It is a 2-layer board of 88 × 82 mm with 72 parts on 72 nets, routed with 498 tracks and 93 vias.
It is built around the XC6222A331MR-G, MPU-6050 and 1N5819W, with the AO3401A among its other parts. Its parts include 17 resistors, 12 capacitors, 10 connectors, 4 ICs and 3 switches.
PCB for OpenTANI



| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | JST-PH 1x04 | TL_Library:JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J5, J6, J7, J8, J9, J10 |
| 5 | 100n | TL_Library:C_0402_TL | C1, C2, C3, C10, C11 |
| 4 | 0 | TL_Library:R_0402_TL | R1, R7, R9, R11 |
| 4 | 10µ | TL_Library:C_0603_TL | C5, C6, C7, C8 |
| 4 | MH 4mm Via | MountingHole:MountingHole_3mm_Pad_Via | H1, H2, H3, H4 |
| 3 | 10k | TL_Library:R_0402_TL | R2, R8, R10 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 2 | 18650 | TL_Library:BatteryHolder_MPD_BH-18650-PC2 | BT1, BT2 |
| 2 | 2k2 | TL_Library:R_0402_TL | R13, R14 |
| 2 | 4k7 | TL_Library:R_0402_TL | R16, R17 |
| 2 | JST-SH 1x06 | TL_Library:JST_SH_1x06-1MP_P1.00mm_Vertical_TL | J2, J3 |
| 2 | NC | TL_Library:R_0402_TL | R12, R15 |
| 2 | XC6222A331MR-G | TL_Library:SOT-23-5_TL | U2, U3 |
| 1 | 10n | TL_Library:C_0402_TL | C9 |
| 1 | 1N5819W | TL_Library:D_SOD-123F | D1 |
| 1 | 1k | TL_Library:R_0402_TL | R3 |
| 1 | 1m | TL_Library:R_0402_TL | R4 |
| 1 | 1µ | TL_Library:C_0402_TL | C4 |
| 1 | 200k | TL_Library:R_0402_TL | R6 |
| 1 | 220k | TL_Library:R_0402_TL | R5 |
| 1 | 2n2 | TL_Library:C_0402_TL | C12 |
| 1 | AO3401A | TL_Library:SOT-23_TL | Q1 |
| 1 | Buzzer | TL_Library:JST_SH_BM02B-SRSS-TB_1x02-1MP_P1.00mm_Vertical | BZ1 |
| 1 | G*** | kibuzzard-6343B22B | kibuzzard-6343B22B |
| 1 | G*** | kibuzzard-6343A88C | kibuzzard-6343A88C |
| 1 | G*** | kibuzzard-6343A679 | kibuzzard-6343A679 |
| 1 | G*** | kibuzzard-6343A6B9 | kibuzzard-6343A6B9 |
| 1 | G*** | kibuzzard-634399EB | kibuzzard-634399EB |
| 1 | G*** | kibuzzard-6343A6AD | kibuzzard-6343A6AD |
| 1 | G*** | kibuzzard-634411D5 | kibuzzard-634411D5 |
| 1 | G*** | kibuzzard-6343BC66 | kibuzzard-6343BC66 |
| 1 | G*** | kibuzzard-6343B0FA | kibuzzard-6343B0FA |
| 1 | G*** | kibuzzard-6343A848 | kibuzzard-6343A848 |
| 1 | G*** | kibuzzard-6343A87B | kibuzzard-6343A87B |
| 1 | G*** | kibuzzard-63441851 | kibuzzard-63441851 |
| 1 | G*** | kibuzzard-6343B029 | kibuzzard-6343B029 |
| 1 | JST-PH 1x02 | TL_Library:JST_PH_B2B-PH-TL-2.0 | J4 |
| 1 | JST-PH 1x04 | TL_Library:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical_TL | J1 |
| 1 | MPU-6050 | TL_Library:InvenSense_QFN-24_4x4mm_P0.5mm_NoMask | U4 |
| 1 | POWER | TL_Library:SW_SPDT_PCM12_TL | SW1 |
| 1 | RED | TL_Library:D_0603_TL | D2 |
| 1 | Reed1 | TL_Library:SW_SPST_REED_CT10-XXXX-G1 | SW2 |
| 1 | Reed2 | TL_Library:SW_SPST_REED_CT10-XXXX-G1 | SW3 |
| 1 | TL-S3-REV.B | TL_Library:TL-S2_Rev.B2 | U1 |
It measures 88 × 82 mm and has 2 copper layers, 1.6 mm thick.
72 parts, built around the XC6222A331MR-G, MPU-6050, 1N5819W and AO3401A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the 00TLalu/TL-Node-Hardware repository on GitHub, at the commit this page was made from: the board is Hardware/TL-Node Rev.0.kicad_pcb and its schematic Hardware/TL-Node Rev.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask 00TLalu before reusing the design.

MorgenWebDigital/airquality
A battery-powered indoor air quality monitor. Real CO₂ from a photoacoustic sensor, VOC and NOx, temperature, humidity and ambient light, shown on a 2.13" e-paper display and sent over Bluetooth LE.

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