
REV1.0.0 JACWFH GS BMP280-module U
GroundStudio/BMP280_module
Explore all the GroundStudio products at GroundStudio.ro

Explore all the GroundStudio products at GroundStudio.ro
REV0.0.1 RNQMCD GS AHT21 is an open-source printed circuit board by GroundStudio, from the GroundStudio/GroundStudio_AHT21_module repository on GitHub. It is a 2-layer board of 22.9 × 20.3 mm with 21 parts on 9 nets, routed with 113 tracks and 21 vias.
It is built around the AHT21, 1.0T-4P卧贴 and 0402B104K160CT, with the LDK105CBJ106MVLF, TZ-P2-0402RTIA1-0.45T and MTP125-1104S1 among its other parts. Its parts include 4 resistors, 2 capacitors, 2 connectors, 2 crystals and 1 IC.
Get it from ardushop.ro
Explore all the GroundStudio products at GroundStudio.ro
Temperature and humidity sensor module based on AHT21 chip.
(Not all tags shown)
This is released under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license. You are welcome to use this for commercial purposes.
Please consider contributing back to this project or others to help the open-source hardware community continue to thrive and grow!
Certifications:
| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | R_0402_10k | GS_Local:R_0402_alt | R1, R3, R4 |
| 2 | i2c_3V3 | GS_Local:SH__1x04_P1.00mm_Horizontal | X1, X2 |
| 1 | AHT21 | GS_Local:AHT | U1 |
| 1 | C_0402_100nF_16V | GS_Local:C_0402_alt | C1 |
| 1 | C_0402_10uF_10V | GS_Local:C_0402_alt | C2 |
| 1 | LED_0402_RED | GS_Local:LED_0402_alt | D1 |
| 1 | LOGO | GS_Branding:GS_Logo2_5x5 | G*** |
| 1 | LOGO | GS_Branding:GS_.ro_1.2x0.6 | G*** |
| 1 | LOGO | GS_Branding:GS_Logo2_4x4 | G*** |
| 1 | LOGO | GS_Branding:GS_Made in Romania_13.8x1.4 | G*** |
| 1 | LOGO | GS_Branding:GS_GroundStudio_14.6x1.8 | G*** |
| 1 | PinHeader_1x04_P2.54_V_M | GS_Local:PinHeader_1x04_P2.54mm_Vertical_Male | J2 |
| 1 | R_0402_330 | GS_Local:R_0402_alt | R2 |
| 1 | SolderJumper_NC | GS_Local:SolderJumper_NC | J1 |
The 17 most common of 21 parts.

GroundStudio/BMP280_module
Explore all the GroundStudio products at GroundStudio.ro



Safecast/bGeigieScint
The board features an integrated boost converter + linear regulator topology for SiPM bias generation:

vl9i/spe-converter
Open-Source SPE-to-Ethernet converter board with SFP, RJ45, H-MTD and MATEnet

UWCubeSat/PHAT-3-Main-Board
PCB design for the PHAT-3 weather balloon payload's main board, housing a radio, sensors, camera, and buck converter.

klaus-liebler/labathome
Der kleine Bruder von lab@home. Ermöglicht das Experimentieren mit PT1...PTn-Gliedern, die intern als RC-Kombination (entkoppelt über Operationsverstärker) ausgeführt sind.

klaus-liebler/sensact
Es gibt vier Namespaces für Nachrichten "REQUEST" und "RESPONSE", "EVENT" und "ACKNOWLEDGE". Dies wird mit den beiden LSB des Versions-Namespace-Bytes erklärt (Somit bleiben 64 Versionierungsmöglichkeiten) Alle vier…
It measures 22.9 × 20.3 mm and has 2 copper layers, 1.6 mm thick.
21 parts, built around the AHT21, 1.0T-4P卧贴, 0402B104K160CT and LDK105CBJ106MVLF. 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 GroundStudio/GroundStudio_AHT21_module repository on GitHub, at the commit this page was made from: the board is Hardware/REV0.0.1 - Kicad6/REV0.0.1 RNQMCD_GS AHT21.kicad_pcb and its schematic Hardware/REV0.0.1 - Kicad6/REV0.0.1 RNQMCD_GS AHT21.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 GroundStudio before reusing the design.