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Compatible Wroom ESP32 WiFi Based Microcontroller Development Board Nodemcu CH9102X - held in a hand, showing the silver ESP-32 shield, micro-USB port, BOOT button and labelled GPIO pins on both headers.

Compatible Wroom ESP32 WiFi Based Microcontroller Development Board Nodemcu CH9102X

PKR 1,090
ESP8266 CH340 Lolin Nodemcu V3 WiFi Development Board IOT Development Board - a black circuit board with a micro USB port, two buttons, and pins.

ESP8266 CH340 Lolin Nodemcu V3 WiFi Development Board IOT Development Board

PKR 610
HC-SR04 Hc SR04 Arduino Ultrasonic Sensor - a blue rectangular module with two circular silver transducers and a four-pin header labeled VCC, Trig, Echo, and Gnd.

HC-SR04 Hc SR04 Arduino Ultrasonic Sensor

PKR 210
W1209 Temperature Controller - with a green circuit board, three push buttons, a digital display, a black relay, screw terminals, and a sensor probe.

W1209 Temperature Controller

PKR 290
18650 Lithium Ion Cell refurb - shown as a single cylindrical battery with a light purple wrapper held in a person's palm.

18650 Lithium Ion Cell refurb

PKR 260
Arduino Uno R3 - board from above, showing its USB-B port, barrel power jack, ATmega328P-PU DIP chip and the digital and analog pin headers.

Arduino Uno R3

PKR 900
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