A base board for Arduino to connect with Bluetooth modules like HC-05, HC-06, and HC-07.
arduino.lk/product/arduino-bluetooth-serial-transceiver-module-base-board-for-hc-06-hc-07-hc-05/
Temperature and humidity sensor module with LED.
arduino.lk/product/dht11-temperature-and-humidity-sensor-module-with-led/
Hydrogen gas sensor module for detecting hydrogen.
arduino.lk/product/mq-8-hydrogen-gas-sensor-module-h2-alarm-detection/
A small magnetic reed switch module.
arduino.lk/product/ky-021-mini-magnetic-reed-switch-module/
Mounting bracket for HC-SR04 ultrasonic sensor.
arduino.lk/product/ultrasonic-sensor-mounting-bracket-for-hc-sr04/
Carbon monoxide gas sensor module.
arduino.lk/product/mq-7-co-carbon-monoxide-coal-gas-sensor-module/
A Bluetooth serial module.
arduino.lk/product/hc-05-bluetooth-wireless-serial-module/
arduino.lk/product/2-channel-5v-dc-relay-module/
arduino.lk/product/mq-135-air-quality-gas-detector-sensor-module/
arduino.lk/product/leonardo-original-development-board/
arduino.lk/product/mq-4-high-sensitivity-gas-methane-cng-detector-sensor-module/
arduino.lk/product/hp-probook-430-g8-core-i5-11th-gen-16gb-256gb-laptop/
arduino.lk/product/heart-beat-pulse-sensor/
arduino.lk/product/red-5mm-diffused-led/
arduino.lk/product/hc-sr505-mini-infrared-pir-motion-sensor-infrared-detector-module/
arduino.lk/product/mq-2-smoke-lpg-butane-hydrogen-gas-sensor-detector-module/
arduino.lk/product/procase-screen-protector-for-surface-pro-7-plus-surface-pro-7-pro-6-pro-5-pro-4/
arduino.lk/product/lm2596-dc-dc-buck-converter-step-down-power-module/
arduino.lk/product/gy-91-mpu9250bmp280-10-dof-9-axis-gyro-compass-accelerometer-module/
arduino.lk/product/vibration-sw-18010p-sensor-module/
115 products in this full report.