Arduino UNO Expansion Board with Temperature and Humidity Sensor
This all-in-one Arduino UNO expansion board packs nine functional modules onto a single PCB that plugs directly onto the Uno header pins — no wiring, no soldering required. It includes a DHT11 temperature and humidity sensor, an LM35D analogue temperature sensor, a passive buzzer, an infrared receiver, a brightness (LDR) sensor, a full-colour RGB LED, two single-colour LEDs, two buttons, and a rotary potentiometer. Each module connects to a labelled pin, so the first sketch runs in minutes.
- 9 onboard modules — DHT11, LM35D, IR receiver, LDR, RGB LED, 2x LED, 2x button, buzzer, potentiometer
- No wiring needed — plugs directly onto Arduino Uno headers
- Expansion ports included — extra header pins for additional modules
- Raised pin headers — clears the Uno USB port without shorting
- Ideal for beginners — all modules pre-labelled with pin references
Which Arduino boards is this expansion board compatible with?
The board is designed for the Arduino Uno footprint and is compatible with the Uno R3, Uno R4, and most Uno-format clones including the CH340 Uno variants. It does not fit the Mega 2560 or Nano form factors.
Do you need to install libraries for the DHT11 and IR receiver?
Yes. The DHT11 requires the DHT sensor library by Adafruit, and the IR receiver works with the IRremote library by shirriff — both are in the Arduino Library Manager and install in under a minute. The LM35D, LEDs, buzzer, and potentiometer need no external libraries.
Best for
Arduino beginner workshops, school STEM lessons, university lab introductions, home automation prototyping, sensor comparison experiments, temperature and humidity logging projects, and learning interrupt-driven IR remote control.
Why Kunkune
Shipped fast from the UK. 60-day returns and no minimum order. Trusted by 4,000+ UK makers.
Buying in bulk? For classroom or lab orders of 10+ units, contact us for a custom quote.
