3wire intercom doorbell sensor
About the 3wire intercom doorbell sensor PCB
3wire intercom doorbell sensor is an open source PCB design by mikepii, published on GitHub. It is a 2-layer board measuring 49.7 × 49.9 mm, with 4 components from 4 distinct parts.
By type, the board carries 1 connector, 1 relay, 1 diode and 1 capacitor.
It belongs with the sensors designs in this gallery.
From the project
circuit to detect doorbell chime for a 3-wire, 4-wire, or 5-wire intercom
Circuit (KiCad project) to detect door chime or warble tone from a IA543, PK543A, or similar apartment intercom amplifier. To be wired in parallel with apartment intercom.
Outputs: dry contact relay (normally-open and normally-closed terminals), e.g. for detection by a Shelly smart switch.
Mounting: three holes for DIN rail mounting bracket Phoenix Contact 1201578.
3wire intercom doorbell sensor bill of materials (BOM)
4 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1715187 Screw_Terminal_01x05 | TerminalBlock_Phoenix_MKDS-1,5-5_1x05_P5.00mm_Horizontal | J1 |
| 1 | G5V-1-DC5 | Relay_SPDT_Omron_G5V-1 | K2 |
| 1 | 1N4003 | D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | EEU-EB1H220SH 22 uF | CP_Radial_D5.0mm_P2.50mm | C1 |
3wire intercom doorbell sensor design files
The KiCad project lives in the mikepii/3wire-intercom-doorbell-sensor repository on GitHub; these links point at the commit this page was built from.
- Layoutdoorbellsensor.kicad_pcb
- Schematicdoorbellsensor.kicad_sch
3wire intercom doorbell sensor: common questions
How big is the 3wire intercom doorbell sensor PCB?
The 3wire intercom doorbell sensor measures 49.7 × 49.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 3wire intercom doorbell sensor?
4 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the 3wire intercom doorbell sensor design files?
From the mikepii/3wire-intercom-doorbell-sensor repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 3wire intercom doorbell sensor design in my own project?
The repository has no license, so all rights stay with mikepii. Use it as a reference, and ask the author before reusing the design.
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