VL53L1X Time-of-Flight Ranger (4 m)
by ST / GY module
SKU: PSA-CMP-VL53L1X
No reviews yetTypical India street price
₹350–₹700
Longer-range laser ToF than VL53L0X — great for room robotics.
Interface: I2C
Wire TRIG/ECHO to the kit ultrasonic pins, then use the distance sense block in Blockly.
TRIG → D7 (GPIO13), ECHO → D0 (GPIO16). Level-shift ECHO on 3.3 V boards.
Blockly: sense_ultrasonic_distance
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Concept
Times an invisible IR laser pulse to measure distance more reliably than ultrasonic on angles.
A little theory
SPAD detector + VCSEL. Configurable ROI and timing budget trade range vs speed. Eye-safe class 1. I2C 0x29. In the classroom, treat VL53L1X Time-of-Flight Ranger (4 m) as a intermediate part using I2C. Typical India street price is about ₹350–₹700. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
SparkFun/Adafruit VL53L1X library; set distance mode Long; read millimetres.
Classroom & project use
- Room occupancy distance
- Robot cliff / ceiling
- Gesture zones
Buying in India
Precautions
- Do not point at eyes at close range for fun
- Keep cover glass clean
Specifications
| Range | up to ~4 m |
| Bus | I2C 0x29 |
| Type | ToF laser |
| Category | Sensors |
| Difficulty | Intermediate |
| Voltage | 3.3–5V module |
| Interface | I2C |
Pinout
VCC | GND | SCL | SDA | XSHUT | GPIO1
