TYPE 1- 4 Digits Digital Objects Counter with WiFi Support
US $15.00–US $99.95
US $29.95
A compact and easy-to-use 4-digit digital object counter powered by an ESP32-C3. Use a <1 mW laser and built-in LDR sensor to automatically count objects as they interrupt the laser beam.
The counter supports UP and DOWN counting modes, manual UP, DOWN and RESET buttons, fast counting, and browser-based control from your phone or computer without installing an app.
The built-in memory preserves the count even when the power is turned off. The LDR can be calibrated for different lighting conditions or completely disabled for manual counting.
BUILDCIRCUITS
US $15.00 – US $99.95
In stock 2 Products
US $79.95
This ESP32-powered 4-digit digital counter is a smart and versatile device designed to count objects automatically or manually. It can display values from 0 to 9999 using a bright, colorful LED matrix display. The system uses a photoresistor–laser beam mechanism to detect passing objects and increment the count with precision.
BUILDCIRCUITS
US $15.00 – US $105.00
In stock 2 Products
US $95.00
This ESP32-powered 4-digit digital counter is a smart and versatile device designed to count objects automatically or manually. It can display values from 0 to 9999 using a bright, colorful LED matrix display. The system uses a photoresistor–laser beam mechanism to detect passing objects and increment the count with precision.
BUILDCIRCUITS
US $15.00 – US $145.00
Out of Stock
US $120.00
This ESP32-powered 4-digit digital counter is a smart and versatile device designed to count objects automatically or manually. It can display values from 0 to 9999 using a bright, colorful LED matrix display. The system uses a photoresistor–laser beam mechanism to detect passing objects and increment the count with precision.
BUILDCIRCUITS
