2 layers
Controller
alvarop/ostur
This is a work in progress for a cheese cave controller system. The goal is to be able to control a mini fridge to get the right conditions for cheesemaking.
89 parts8MIT
4 layers36 × 34 mm
Sensor
alvarop/ostur8This is a work in progress for a cheese cave controller system. The goal is to be able to control a mini fridge to get the right conditions for cheesemaking.
- Size
- 36 × 34 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 27
- Pads
- 104
- Tracks, vias
- 116, 65
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 2 Nov 2016
- Updated
- 11 Oct 2026
Overview
Sensor is an open-source printed circuit board by alvarop, from the alvarop/ostur repository on GitHub, published under the MIT licence. It is a 4-layer board of 36 × 34 mm with 22 parts on 27 nets, routed with 116 tracks and 65 vias.
It is built around the 2450FM07A0029T. Its parts include 10 capacitors, 2 resistors, 2 ICs, 2 inductors and 1 diode. It belongs with the sensors and measurement boards and the nRF52 and nRF5x boards of this library.
Main components
1README
README.mdOstur - Cheese cave controller!
This is a work in progress for a cheese cave controller system. The goal is to be able to control a mini fridge to get the right conditions for cheesemaking.
The project consists of:
- Hardware - A microcontroller and various temperature/humidity sensors
- Firmware - Code in the microcontroller to control the fridge and measure temperature/humidity values
- Software - Python scripts to communicate with the microcontroller to log and plot data
So far, it's been used to make Brie successfully!
Once it's more user friendly, I'll add usage instructions so others can reproduce the setup.
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C5, C11, C12 |
| 2 | 12pF | Capacitor_SMD:C_0402_1005Metric | C4, C6 |
| 2 | DNP | Capacitor_SMD:C_0402_1005Metric | C9, C10 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 100pF | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 10uH | Inductor_SMD:L_0603_1608Metric | L2 |
| 1 | 15nH | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 2450FM07A0029T | alvarop:2450FM07A0029T | F1 |
| 1 | 32MHz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | Antenna | alvarop:AMCA31-2R450G-S1F-T3 | AE1 |
| 1 | Battery_Cell | alvarop:BAT-HLD-001-THM | BT1 |
| 1 | LED_ALT | LED_SMD:LED_0402_1005Metric | D1 |
| 1 | NRF52805 | alvarop:NRF52805 | U1 |
| 1 | SHT3x-DIS | alvarop:SHT3x | U2 |
| 1 | TC2030-CTX | alvarop:TC2030-NL | J1 |
Questions
How big is the Sensor PCB?
It measures 36 × 34 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Sensor use?
22 parts, built around the 2450FM07A0029T. 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.
Where can I download the Sensor KiCad files?
From the alvarop/ostur repository on GitHub, at the commit this page was made from: the board is hw/sensor/sensor.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sensor design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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