Test 07. Component assignment
About the Test 07. Component assignment PCB
Test 07. Component assignment is an open source PCB design by henkjannl, published on GitHub under the MIT license. It is a 2-layer board measuring 40 × 36 mm, with 21 components from 15 distinct parts.
Other key parts include the EL357N-G. By type, the board carries 7 diodes, 5 resistors, 4 capacitors, 2 ICs, 2 connectors and 1 transistor.
From the project
Opentherm room thermostat that can be controlled through Telegram, but also locally
I wanted to create a room thermostat that can be controlled remotely ('honey, did you remember to switch off the heating?') but which also remains fully operational if internet connectivity is lost. Therefore it can be controlled through Telegram, but also via the hardware unit if WiFi is down. This is also useful since visitors may not want to use Telegram.
Main components on the Test 07. Component assignment
Test 07. Component assignment bill of materials (BOM)
21 components, 15 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | EL357N-G | OPTO_EL357N-G | U1, U2 |
| 1 | MMBT2907A | SOT-23 | Q1 |
| 1 | OpenTherm | TerminalBlock_bornier-2_P5.08mm | J1 |
| 1 | Controller | TerminalBlock_bornier-4_P5.08mm | J2 |
| 4 | 1N4148WS | D_SOD-323 | D1, D2, D3, D4 |
| 1 | BZT52C4V7S | D_SOD-323 | D5 |
| 1 | BZT52C15V | D_SOD-123 | D6 |
| 1 | BZT52C4V3 | D_SOD-123 | D7 |
| 2 | 10N 10n | C_0603_1608Metric | C1, C3 |
| 2 | 2N2 2n2 | C_0603_1608Metric | C2, C4 |
| 1 | 200 | R_0805_2012Metric | R1 |
| 1 | 150 | R_0805_2012Metric | R2 |
| 1 | 330 | R_0805_2012Metric | R3 |
| 1 | 1K5 1k5 | R_0805_2012Metric | R4 |
| 1 | 330 | D_0805_2012Metric | R5 |
Test 07. Component assignment design files
The KiCad project lives in the henkjannl/RoomThermostat repository on GitHub; these links point at the commit this page was built from.
- Layout04 Electrical/Redesign PCB 3.0/PCB design/Test 07. Component assignment/Test 07. Component assignment.kicad_pcb
- Schematic04 Electrical/Redesign PCB 3.0/PCB design/Test 07. Component assignment/Test 07. Component assignment.kicad_sch
- BOM04 Electrical/Redesign PCB 3.0/PCB design/Test 07. Component assignment/production/bom.csv
Test 07. Component assignment: common questions
How big is the Test 07. Component assignment PCB?
The Test 07. Component assignment measures 40 × 36 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Test 07. Component assignment?
21 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 Test 07. Component assignment design files?
From the henkjannl/RoomThermostat 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 Test 07. Component assignment design in my own project?
Yes, under the terms of its MIT license, which henkjannl chose for the repository.
