Makers Electronics sells motion, position and orientation sensors for Arduino, ESP32 and Raspberry Pi projects in Alexandria, with delivery across Egypt: PIR and radar motion sensors, accelerometers, gyroscopes (MPU-6050, ADXL345), magnetometers, Hall sensors, reed switches, tilt switches and encoders. All prices are in EGP, and the live price and stock are on each product page.
Motion, position and orientation sensors in stock
More: browse all motion, position and orientation sensors and the other sensor types.
Which motion sensor do you need?
| Sensor | What it detects | Output | Good for |
|---|---|---|---|
| PIR (SR501, AM312, HC-SR505, SR-602) | A change in infrared from a warm body moving in view | Digital | Lights, alarms and presence detection indoors |
| Microwave radar (RCWL-0516) | Movement, using a microwave signal; it can sense through thin plastic or wood | Digital | Motion detection where a PIR sensor cannot see |
| Infrared beam detector (ABT series) | Someone breaking an infrared beam over a long distance | Digital (relay or contact) | Perimeter and gate detection |
| IMU (MPU-6050) | Rotation (gyroscope) and acceleration (accelerometer) on 3 axes each | Digital (I2C) | Balancing robots, drones, gesture and tilt measurement |
| Accelerometer (ADXL345) | Acceleration and tilt on 3 axes | Digital (I2C or SPI) | Tilt, shock and vibration detection |
| Magnetometer (GY-271, GY-273) | Magnetic field: a digital compass heading | Digital (I2C) | Compass and navigation projects |
| Hall sensor, reed switch | A nearby magnet | Digital or analog | Door and window sensors, speed and position sensing |
| Tilt switch | Whether the sensor is tilted | Digital | Simple tilt and orientation alarms |
| Rotary encoder | Rotation steps and direction of a shaft | Digital pulses | Knobs, wheel counting and speed measurement |
Quick rules
- A PIR sensor needs a warm-up time after power-on, often a minute, and then holds its output high for a set delay. Many modules have two trimmers for sensitivity and delay.
- A PIR sees heat that moves across its field of view. A person walking straight at the sensor can be detected later than one crossing in front of it.
- A gyroscope drifts slowly over time. To get a stable angle from an MPU-6050, combine the gyroscope and the accelerometer data with a filter.
- I2C sensors share two wires but each needs a different address. The MPU-6050 uses 0x68 or 0x69, set with its AD0 pin.
- Some GY-271 compass modules carry a QMC5883L chip instead of the HMC5883L, and the two need different libraries. Check which chip your module has.
- Keep a magnetometer away from motors, speakers, magnets and steel, which distort the reading.
Guides
- MEMS sensors
- AI-Thinker radar modules comparison: RD-01, RD-03, RD-03D and RD-04
- I2C vs SPI vs UART: choosing the right communication protocol
See also: all sensors in Egypt, temperature and humidity sensors, light, infrared and colour sensors, motors, servos and drivers, and the boards: ESP32 and Arduino.
Frequently asked questions
What is the difference between a PIR sensor and a radar sensor?
A PIR sensor detects the infrared heat of a moving body in its field of view. A microwave radar sensor sends a signal and detects movement from the echo, so it can sense through thin plastic or wood, but it can also react to fans or vibrations.
Which is better for balancing a robot: the MPU-6050 or the ADXL345?
The MPU-6050 has a gyroscope and an accelerometer in one chip, which is what a balancing robot needs. The ADXL345 is an accelerometer only.
Why does my PIR sensor trigger by itself?
Check that it has finished its warm-up, that its power supply is steady, and that it is not facing a heater, a window with sunlight or an air conditioner. Lowering the sensitivity on the module can also help.
Do you deliver motion sensors across Egypt?
Yes. Orders to Alexandria placed before 2:00 PM are usually delivered the same day, and orders to other governorates are usually delivered the next day. These are typical times, not a guarantee. Shipping cost depends on the governorate and is shown at checkout. See Shipping and Delivery.
Can I return motion sensors?
Electronic products cannot be returned or exchanged once opened or used, except for confirmed manufacturing defects. Defects must be reported within 3 days of delivery. Full rules: Refund and Returns Policy.
Do you sell motion sensors in bulk to schools, universities or companies?
Yes. Contact customer service on +2 0248813824, WhatsApp +20 121 198 1188 or info@makerselectronics.com and you will be connected to the corporate customers team.
Can I visit the store?
Yes: 158 Elhorya St., Elibrahymia, Alexandria, Egypt. Saturday to Thursday 10:00 AM to 8:30 PM, Friday 2:00 PM to 8:00 PM.