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SENS-9IN1 Arduino Uno 9 In 1 Sensor Shield
US$12.99
If you are new to the Arduino platform, this Arduino Shield has it all! It can help you understand the basic concepts of sensors, LEDs, Buzzers, Serial and I2C communications.
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LED-STRIP-DIM 20W PWM Motor/LED Dimmer - 12-24VDC 0.8A
US$3.99
You can conveniently adjust the brightness of your LED Strip of DC motor with this dimmer·
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MOD-MT8870 MT8870 Voice Decoding Module
US$4.94
The DTMF module decodes Dual Tone Multi Frequency signals and converts them into a binary-like output. The DTMF module is powered by 5VDC
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MOD-135 5-30VDC Trigger Cycle Delay Switch Module with Real Time Clock (RTC)
US$15.39
This versatile timer can be programmed from 0.1 seconds to 999 minutes.
A four digit seven segment displays time in 0.1 seconds, seconds, or minutes.
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212x104, 2.13inch flexible E-Ink display HAT for Raspberry Pi
US$27.99
This is a flexible E-Ink display HAT for Raspberry Pi, 2.13inch, 212x104 resolution, with embedded controller, communicating via SPI interface, supports partial refresh. Compared with normal e-Paper panels, this flexible panel allows bending without being damaged, and it's thinner and lighter. Combined with the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications where curved surface display is required, such as industrial instruments, smart wearable-devices, and so on.
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WAVE-14972 240x240, 1.3inch IPS LCD display HAT for Raspberry Pi
US$19.59
This is an IPS LCD display HAT for Raspberry Pi, 1.3inch diagonal, 240x240 pixels, with embedded controller, communicating via SPI interface. Trying to add a control interface for your Pi? This compact display would be the ideal choice.
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WAVE-15141 Li-ion Battery HAT for Raspberry Pi, 5V Output, Quick Charge
US$26.59
The Li-ion Battery HAT integrates SW6106 power bank management chip, allows providing 5V regulated power supply to your Pi from a 14500 battery, makes the Pi becomes a portable device. It will charge the battery as well, supports bi-directional quick charge. This module can be used as a universal mini power bank, also works with other 5V devices.
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WAVE-14882 RS485 CAN HAT for Raspberry Pi
US$19.59

The RS485 CAN HAT will enables your Pi to communicate with other devices stably in long-distance via RS485/CAN functions. Features: Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+ CAN function, onboard CAN controller MCP2515 via SPI interface, with transceiver SN65HVD230. RS485 function, controlled via UART, half-duplex communication, with transceiver SP3485. Reserved control pins, allows to work with other control boards. Comes with development resources and manual (examples in wiringPi/python).

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ARD-616N Micro SD card and RTC Data Logging Shield for Arduino Nano/Micro - V3
US$13.60
If you are new to the Arduino platform, you should get one of these! It will get you going quickly - saving data to files on any FAT16 or FAT32 formatted SD card, to be read by any plotting, spreadsheet or analysis program.
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Atmega328P Microcontroller Board Compatible with Arduino Uno R3
US$18.15

The Arduino Uno is a microcontroller board based on the ATmega328 Chip. It features 14 digital input/output pins which six of can be used as a PWM output, along with six analog inputs, a 16 MHz low profile crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.

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TFPGA-P TinyFPGA Programmer
US$13.93
If you have yourself a TinyFPGA A-series board then you are definitely going to need this handy TinyFPGA Programmer. The TinyFPGA Programmer is a very simple USB-JTAG bridge designed to program bitstreams onto TinyFPGA A1 and A2 boards. Rather than an FTDI2232 USB interface chip the TinyFPGA Programmer uses a PIC16F1455 USB microcontroller and equipped with a micro USB connector. While not compatible with the FTDI2232 chip, the PIC micro has a much lower overall cost allowing your hardware to be cheaper overall!
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PI-ADS1115 Raspberry Pi 16 Bits I2C ADS1115 4 Channel ADC Module
US$18.13
The ADS1115 are precision analog-to-digital converters (ADCs) with 16 bits of resolution offered in an ultra-small, an MSOP-10 package. 
Data are transferred via an I2C-compatible serial interface, four I2C slave addresses can be selected, it operate from a single power supply at 3.3V.
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MOD-DS28E17 DS28E17 1-Wire-to-I2C Master Bridge Module
US$21.95
The DS28E17 is a 1-Wire slave to I2C master bridge device that interfaces directly to I2C slaves at standard (100kHz max) or fast (400kHzmax). Data transfers serially by means of the 1-Wire® protocol, which requires only a single data lead and a ground return.
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ARD-LP-21 LilyPad Yellow LED Module- 3VDC (5pcs)
US$3.07

This is a simple pack of five Yellow LilyPad LEDs that allow to be sewed into clothing or whatever else you can dream up.

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ARD-LP-22 LilyPad Green LED Module- 3VDC (5pcs)
US$3.07

This is a simple pack of five Green LilyPad LEDs that allow to be sewed into clothing or whatever else you can dream up.

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