Isolated AC Mains Voltage Detection Module 110-250V PC817
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 UGE | Isolated AC mains Voltage Detection Module | 80 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 80 EGP
About this product
A detection board that senses whether AC mains voltage (110–250 V) is present and outputs a logic-level signal. It uses PC817 optocoupler isolation to protect the microcontroller and has an onboard LED that shows power status. Its output is compatible with 5 V and 3.3 V logic on boards such as Arduino, ESP32, STM32 and Raspberry Pi.
Specifications
- Input voltage range
- 110–250 V AC
- Output logic level
- 5 V and 3.3 V compatible
- Isolation
- PC817 optocoupler
- Function
- Mains voltage presence detection (present / absent)
- Indicator
- Onboard LED
Frequently asked questions
What is the price of Isolated AC Mains Voltage Detection Module 110-250V PC817 in Egypt?
Isolated AC Mains Voltage Detection Module 110-250V PC817 currently costs 80 EGP in Egypt.
Where can I buy Isolated AC Mains Voltage Detection Module 110-250V PC817 in Egypt?
Isolated AC Mains Voltage Detection Module 110-250V PC817 is available from UGE. Compare the offers above to find the best price.
Does the module measure the voltage value?
No. As described in the listing, it only indicates whether mains voltage is present or absent. For measuring the actual voltage, a dedicated AC voltage sensor is required.
How should I connect it to a microcontroller?
Connect the output pin to a GPIO input and the ground to the microcontroller ground, using a supply and logic level that match your board. The mains side must be wired by a qualified person inside an insulated enclosure, and live terminals must never be touched.
