Modular multi-touch relay V1.1

Features of this version:

1. It is more convenient for DIYers to make boards. Each board has 5 touch drive modules, 2 capacitive-resistance step-down power supply modules, 2 ordinary relay modules, and 3 narrow body relay modules.

2. Higher integration, easy to disassemble, the touch module is small 1*2CM, the original design is to transform the ordinary switch-less power strip with extremely limited internal space into a multi-channel touch switch

3. Only one power module is needed, 1-10 touch drive modules are used in series, and the relay specifications must be unified.

4. For SRD-24VDC relay, use 100nf capacitor and step-down capacitor; for FTR-F3AA024E narrow body relay or SRD-48VDC relay, use 68nf capacitor.

For other relays, the size of the capacitor and voltage-reducing capacitor should be adjusted according to the difference in relay driving current. It should be large rather than small.

5. You can use other relays >10V <50V. The values ​​of the triggering Zener diode D2 and the energy storage capacitors C2 and C3 need to be adjusted at the same time. The capacitance-resistance and voltage-reduction capacitors also need to be adjusted simultaneously for this relay.

For details, please refer to https://www.mydigit.cn/thread-279008-1-1.html

6. In order to save space, this version must be split according to modules. 1-2 connections are required between modules.

If the transformation space is large enough, it is recommended to use the original single- and dual-channel versions https://oshwhub.com/9445397_qq/new-project