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Microsensor board

BeeEyeIoT·microsensor-board

Microsensor board layout, top view — open source board by BeeEyeIoT
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About the Microsensor board

Microsensor board is an open source PCB design by BeeEyeIoT, published on GitHub. It is a 4-layer board measuring 27 × 26 mm, with 20 components from 15 distinct parts.

Other key parts include the HDC2080, RV-3028-C7 and NORA B206. By type, the board carries 9 resistors, 3 ICs, 3 capacitors, 1 transistor, 1 crystal and 1 battery holder.

It belongs with the sensors and iot & wireless designs in this gallery.

From the project

Miniature temperature and humidity sensor based on Nordic Semiconductor SoC

This is a complete KiCad project of a miniature multiprotocol temperature and humidity sensor based on nRF54 SoC and HDC2080 sensor.

An example firmware for the board can be found here: microsensor-firmware.

- 4 layer PCB layout - NB: earlier versions routed with 2 layers - External RTC allows System Off sleep enabling ultra-low power consumption - SoC supports BLE, ZigBee and Thread - Miniature 6-pin Tag-Connect for firmware burning and debugging - Button and LED - Backside pads for CR20xx

Main components on the Microsensor board

HDC2080RV-3028-C7NORA B206

Microsensor board bill of materials (BOM)

20 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
HDC2080
U1
1
RV-3028-C7
U2
1
NORA B206
U3
1
IRLML2244TRPBF
Q1
1
32768
Y1
1
CR1225
BT0
1
Control
SW1
1
LED
D1
1
220UF
220uF
C1
1
0.1U
100n
C2
1
0.1U
100nF
C3
3
4.7K
R1, R2, R9
3
100K
R3, R6, R7
1
330K
R4
2
100
R5, R8

Microsensor board design files

The KiCad project lives in the BeeEyeIoT/microsensor-board repository on GitHub; these links point at the commit this page was built from.

Microsensor board: common questions

How big is the Microsensor board?

The Microsensor board measures 27 × 26 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Microsensor board?

20 components, from 15 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 Microsensor board design files?

From the BeeEyeIoT/microsensor-board 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 Microsensor board design in my own project?

The repository has no license, so all rights stay with BeeEyeIoT. Use it as a reference, and ask the author before reusing the design.

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