Related Objects of Interest: esp8266, arduino_nano, heltec_esp32_lora, raspberry_pi_3, arduino, switch, heltec, raspberry, servo, ultrasonic sensor
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resistor 1 digit 7 segment display 100 microF electrolytic capacitor 104 pF ceramic capacitor 3-6V motor 4 digit 7 segment display 5V relay 830 tie points breadboard 9V 1A adapter 9V battery USB A to USB C USB A to micro B USB B to USB A cable active buzzer breadboard jumper wire button for iot kit dht11 temperature and humidity module diode rectifier elegoo ds1307 rtc module elegoo power supply module