Moca hcho
About the Moca hcho PCB
Moca hcho is an open source PCB design by Gekkio, published on GitHub. It is a 2-layer board measuring 66 × 57 mm, with 18 components from 15 distinct parts.
Other key parts include the BT832F, LN1132P332M and 74LVC1G07. By type, the board carries 5 capacitors, 3 ICs, 3 connectors, 3 diodes, 3 resistors and 1 transistor.
It belongs with the sensors, iot & wireless and power & battery designs in this gallery.
From the project
Bluetooth 5 BLE formaldehyde/temperature/humidity sensor beacon
moca-hcho is a simple Bluetooth Low Energy sensor beacon that uses a Sensirion SFA30 Formaldehyde Sensor Module to sense formaldehyde/temperature/humidity. This information is measured and sent periodically using Bluetooth BLE advertisements, which can be received by any Bluetooth 4.0+ device within range.
Enclosure: Hammond 1551V4WH vented sensor enclosure (wall-mountable) Sensor: Sensirion SFA30 Formaldehyde sensor module Microcontroller: Fanstel BT832 Bluetooth module with Nordic nRF52832 Power supply: external +5V power supply Firmware (less than 1 kLOC) is written in Rust using the…
Main components on the Moca hcho
Moca hcho bill of materials (BOM)
18 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BT832F | Fanstel_BT832F | U1 |
| 1 | LN1132P332M | SOT-23 | U2 |
| 1 | 74LVC1G07 | SOT-353_SC-70-5 | U3 |
| 1 | BSS84 | SOT-23 | Q1 |
| 1 | DNP | SolderWire-0.25sqmm_1x02_P4.2mm_D0.65mm_OD1.7mm_Relief | J1 |
| 1 | DNP | SolderWire-0.15sqmm_1x05_P4mm_D0.5mm_OD1.5mm | J2 |
| 1 | DNP | Tag-Connect_TC2050-IDC-NL_2x05_P1.27mm_Vertical | J3 |
| 2 | SMF10CA | D_SOD-123F | D1, D2 |
| 1 | LED | LED_D3.0mm | D3 |
| 1 | 47uF | CP_Elec_5x5.8 | C1 |
| 2 | 4.7uF | C_0805_2012Metric | C2, C3 |
| 2 | 10uF | C_1206_3216Metric | C4, C5 |
| 1 | 100R | R_0805_2012Metric | R1 |
| 1 | 10k | R_0805_2012Metric | R2 |
| 1 | 1k | R_0805_2012Metric | R3 |
Moca hcho design files
The KiCad project lives in the Gekkio/moca-hcho repository on GitHub; these links point at the commit this page was built from.
- Layouthw/moca-hcho.kicad_pcb
- Schematichw/moca-hcho.kicad_sch
Moca hcho: common questions
How big is the Moca hcho PCB?
The Moca hcho measures 66 × 57 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Moca hcho?
18 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Moca hcho design files?
From the Gekkio/moca-hcho repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Moca hcho design in my own project?
The repository has no license, so all rights stay with Gekkio. Use it as a reference, and ask the author before reusing the design.
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