What it is
The ShillehTek WCS1700 70A Hall Current Sensor Module Overcurrent Detect is a Hall-effect current sensor board for measuring heavy AC or DC loads using non-contact magnetic induction: route the high-current conductor through the sensor hole while keeping your Arduino/Raspberry Pi controller galvanically isolated. It provides an analog output for real-time current logging plus a digital fault output that asserts when an adjustable overcurrent threshold is exceeded (with an onboard LED for status).
Pins
Pin names and order can vary by board revision—refer to the silkscreen labels on the module and the listing photos for exact pin names and orientation. This module is described as providing an Analog Output (often labeled Aout) and a Digital Output (often labeled Dout), along with power/ground connections; the blue potentiometer adjusts the overcurrent trip point.
Technical Specifications
| Item | Details |
|---|---|
| Sensor / method | Hall-effect, non-contact magnetic induction (conductor passes through sensor hole) |
| Maximum monitored current | Up to 70A (heavy load monitoring) |
| Current type | AC or DC |
| Isolation | Galvanic isolation between controller side and high-power conductor |
| Outputs | Analog output for measurement/logging; digital output for overcurrent fault indication |
| Overcurrent threshold | User-adjustable via onboard potentiometer |
| Status indicator | Onboard LED indicates overcurrent status |
Frequently Asked Questions
How do I wire the WCS1700 current sensor module to an Arduino or Raspberry Pi?
Connect the module to your controller using the board’s silkscreen pin labels (power, ground, and the signal pins). Read the analog output for current monitoring, and use the digital output as an overcurrent fault input.
Does the ShillehTek WCS1700 measure AC and DC current?
Yes. The module is described as measuring both AC and DC current using Hall-effect sensing.
How do I set the overcurrent trip threshold on the WCS1700 module?
Use the onboard potentiometer to adjust the overcurrent threshold. When the sensed current exceeds your set point, the module asserts the digital fault output and the status LED indicates an overcurrent condition.
Is the WCS1700 sensor galvanically isolated from the high-current line?
Yes. The sensing method is non-contact: the high-current conductor passes through the sensor hole, keeping the low-voltage controller side isolated from the power circuit.