Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital (DO) and Analog (AO) |
| Pin Configuration | 3-Pin / 4-Pin Compatible |
| Detection Wavelength | 700nm - 1100nm |
| Potentiometer | Adjustable Sensitivity Control |
| Comparator Chip | LM393 |
| PCB Size | 32mm x 14mm |
| Mounting Hole Diameter | 3mm |
| Response Time | < 1ms |
| Application Compatibility | Arduino, Raspberry Pi, ESP32 |
Anonymous
Mar 29, 2026
Rating: 4/5
Good value, clear instructions needed
The sensor itself is high quality and responds quickly to light changes. I deducted one star because there were no printed instructions included, but I found plenty of examples online. Great for the price.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for my solar tracker project
This photodiode module works exactly as described. The sensitivity adjustment via the potentiometer is very smooth, allowing me to calibrate it perfectly for outdoor lighting conditions. Easy to wire up to my Arduino.
Anonymous
Mar 19, 2026
Rating: 4/5
Great for learning electronics
Bought this for a university project. It helped me understand analog vs digital signals clearly. The LM393 comparator is a nice touch for stable switching. Works well with 3.3V logic too.
Anonymous
Mar 18, 2026
Rating: 5/5
Reliable brightness detection
I used this to automate my desk lamp based on room brightness. The digital output switches cleanly without flickering. The 4-pin layout makes it versatile for different breadboard setups.
Anonymous
Mar 17, 2026
Rating: 5/5
Exceeded expectations
Very sensitive even in low light conditions. I was able to detect subtle changes in brightness for my smart home automation system. Shipping was fast and the packaging protected the pins well.
Anonymous
Mar 14, 2026
Rating: 5/5
Compact and efficient
Small footprint but robust performance. I integrated four of these into a robot for line following and light seeking behaviors. They all performed consistently with minimal calibration differences.
Q: Can this module be directly connected to a 5V Arduino Uno?
A: Yes, this module operates comfortably within the 3.3V to 5V range, making it fully compatible with the Arduino Uno's 5V logic levels.
Q: Does this come with header pins soldered?
A: No, the module typically ships without header pins soldered to allow flexibility for direct wire soldering or using your own preferred headers. You will need to solder them yourself.
Q: Is this sensor suitable for detecting infrared remote control signals?
A: While it has some sensitivity in the near-infrared spectrum, it is primarily designed for ambient light detection. For decoding IR remote signals, a dedicated TSOP IR receiver module is recommended.
Q: What is the difference between the DO and AO pins?
A: AO (Analog Output) provides a variable voltage corresponding to the light intensity, while DO (Digital Output) gives a HIGH or LOW signal when the light crosses the threshold set by the potentiometer.
Q: How do I adjust the sensitivity of the sensor?
A: You can adjust the sensitivity by turning the blue potentiometer on the board clockwise to increase sensitivity or counter-clockwise to decrease it while exposing the sensor to your target light level.
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