Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | Telesky |
| Model Number | WCS1800 |
| Sensor Type | Hall Effect |
| Max Current Detection | 35A |
| Output Signal | Analog Voltage |
| Operating Voltage | 5V DC |
| Protection Features | Short-Circuit and Overflow |
| Response Time | < 5µs |
| Operating Temperature | -40°C to 85°C |
| Package Type | Module with Pin Headers |
Anonymous
Mar 24, 2026
Rating: 5/5
Perfect for my battery monitor project
This sensor works flawlessly with my Arduino setup. The 35A range is perfect for monitoring my e-bike battery without breaking the bank. Calibration was straightforward.
Anonymous
Mar 23, 2026
Rating: 5/5
Great value for money
Bought five of these for our workshop. They all performed consistently. The analog output is clean and easy to read with standard microcontrollers.
Anonymous
Mar 08, 2026
Rating: 5/5
Excellent for university projects
Used this for my final year electrical engineering project. The documentation online helped me interface it quickly. No noise issues observed in the readings.
Anonymous
Mar 07, 2026
Rating: 4/5
Compact and effective
Fits perfectly in tight spaces on my drone frame. Measures current draw accurately up to about 30A. Didn't push it to the full 35A limit yet, but confident it will hold.
Anonymous
Mar 05, 2026
Rating: 4/5
Good accuracy, fast shipping
Used this for a robotics arm motor control. The response time is very quick. Only giving 4 stars because the pin headers were slightly bent upon arrival, but easy to fix.
Anonymous
Mar 01, 2026
Rating: 5/5
Reliable protection features
I appreciate the built-in short-circuit protection. It saved my circuit when I accidentally wired something wrong during testing. Highly recommended for DIY solar projects.
Q: How do I calibrate the sensor for precise readings?
A: Calibration involves measuring the output voltage at 0A and at a known load (e.g., 10A). Use these two points to calculate the sensitivity factor in your code. We recommend using a multimeter to verify the reference current.
Q: What is the exact output voltage at 0 Amps?
A: At 0 Amps, the output voltage is typically VCC/2 (approximately 2.5V when powered by 5V). Current flowing in one direction increases the voltage, while the opposite direction decreases it.
Q: Can this measure AC current as well as DC?
A: Yes, the WCS1800 Hall Effect sensor can measure both AC and DC current. The output will reflect the instantaneous current value, so for AC, you will see a varying voltage signal.
Q: Does this module work with 3.3V microcontrollers like ESP32?
A: Yes, the module operates at 5V, but the analog output is ratiometric. You can connect it to a 3.3V ADC, but ensure you adjust your code scaling factors accordingly. Some users add a voltage divider for safety.
Q: Is the screw terminal included for high current connections?
A: This specific module version comes with pin headers for the signal and power. The high-current path is usually a thick PCB trace or a dedicated pad; please check the product images for the specific terminal style included in this batch.
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