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Soil Moisture
HC-SR04 Ultrasonic Sensor
HC-SR04 Ultrasonic Sensor is an ultrasonic ranging sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver, and a control circuit. There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground).
Earth Resistance Tester
4-channel 24V Relay
Raspberry Pi 3 Model B Plus Kit
Raspberry Pi 3 Model B Plus Board:
- The updated Pi 3 Model B plus design is based around a B plus Broadcom BCM2836 SoC, which includes a Quad-Core ARM7 900 MHz processor
- Processor: ARM7 900MHz CPU
- USB: 4 x USB Ports
- Ethernet: 10/100 Ethernet Port
- Video Output: HDMI and Composite
- Sound: L/R Stereo
- Memory: 1.4 GB Ram
- Operating System: Uses micro SD card slot to load O/S
- Digital interfaces: 2 onboard ribbon slots for Camera and Display
- GPIO: 40 GPIO pins, backward compatible to B and B+ board
- Micro SD port for loading your operating system and storing data
- Power Supply: External 5V
- I/O Operation Level: 3.3V
- Board Size: 85mm*56mm*1.6mm
- Only Model B plus board
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