Arduino Single power control unit: Difference between revisions
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== The hardware part == | == The hardware part == | ||
=== The circuit === | |||
In order to build a power cutter using a relay module, one must follow the circuit provided. | In order to build a power cutter using a relay module, one must follow the circuit provided. | ||
[[File:housemade_relay.png]] | [[File:housemade_relay.png]] | ||
==== the required hardware ==== | |||
* 1 BJT transistor 2N2222A | * 1 BJT transistor 2N2222A | ||
* 1 3.3 kOhms resistor | * 1 3.3 kOhms resistor | ||
Revision as of 18:20, 14 December 2016
Why?
The Arduino Single power control unit was created for controlling a relay that is able to turn on/off the devices that it powers like the Yocto DUTs. Such need has arisen due to a clean power-off is not always reliable.
The software part
The hardware part
The circuit
In order to build a power cutter using a relay module, one must follow the circuit provided.
the required hardware
- 1 BJT transistor 2N2222A
- 1 3.3 kOhms resistor
- 1 1N4007 diode
- 1 relay module (RAS-0510)
- 1 Protoboard or perforated PCB (min 4.5x4.5 cm)
- 1 Two positions terminal block
- 1 male outlet connector and 1 female outlet plug
- 14AWG Wire (as needed)
