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PI-MIC1 USB Microphone for Raspberry Pi & Desktop
US$9.79
This Microphone module is designed to work with any Raspberry Pi device running linux operating system. Great for creating voice recognition software or it can be also used on any windows operating system without the need of installing additional drivers (exception on windows 10). Since it is USB based, you don’t need to use your microphone jack and a usb port to power the unit. This Mic only needs one USB port for power and signal making it a great recommendation for RPI devices.
Delivery within 2-3 weeks
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BB-USB USB 2.0 Female Breakout Board
US$1.82
This simple board breaks out a female USB type A connector’s VCC, GND, D- and D+ pins to a 0.1" pitch header. If you want to add a USB to your project, but don’t want to put up with soldering tiny connectors, this is the board for you. Connection may require the addition of two 15kΩ resistors.
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BB-INA219 I2C Interface – DC Current Sensor (INA219)
US$10.70
This breakout board will solve all your power-monitoring problems. Instead of struggling with two multimeters, you can just use the handy INA219B chip on this breakout to both measure both the high side voltage and DC current draw over I2C with 1% precision. With the internal 12 bit ADC (Analog-Digital Converter), the resolution at ±3.2A range is 0.8mA. With the internal gain set at the minimum of div8, the max current is ±400mA and the resolution is 0.1mA.
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MOD-JQ6500 Mini MP3 Module for Arduino, based on JQ6500 IC
US$10.93

This Miniature device is used as a MP3 hardware decoder perfect for MP3 audio format! Create projects that have audio files that need to be played without the need of a microcontroller. Simply connect a Micro USB into the device with the other end to any computer. This unit has 16 pins with an onboard 2MB Flash memory. If you are using windows operating system, you can simply upload music directly onto the unit with low bitrate. Alternatively you can also store larger files on any microSD card and load around 16gb or 999 mp3 files. (not recommended for a music player, recommended for a little microcontroller to store small mp3 audio files that are triggered by a input ranging from k1 to k5).

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ARD-617 High Speed Low power CANBUS Transceiver for Arduino TJA1051
US$7.69

CANBus protocol are commonly found in cars and in the industrial field for signal processing. There are many variations to this protocol, we recommend using this device as a 3.3v CANBus device. This product is perfect for beginning users that are not familiar with this protocol to physical test and solidify their theoretical knowledge on the protocol.

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0-5VDC to 4-20mA Voltage to Current Converter Module
US$12.53
This module is used to convert a 0-5VDC signal to 4-20mA output signal. At 4mA the output voltage is 0VDC and at 20mA the output voltage is 5VDC. Specifications: Output Current Min: 4mA. Output Current Max: 20mA. Input Voltage Min: 0VDC. Input Voltage Max: 5VDC. Operating Temperature: -10 to 60°C. Storage Temperature: -20 to 85°C. Dimensions: 40 x 25 x 12mm (L x W x H).
Delivery within 2-3 weeks
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FIT0367 Self-adhesive Pure Copper Heatsink For Raspberry Pi
US$1.81
This tiny little orange heatsink is a perfect solution for cooling off small surface-mount components such as stepper driver or CPUs on Raspberry Pi or mini PC. It is made of pure copper to increase heat dissipation and transfer for your machine running cooler in summer.
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MOD-115 PL2303 USB to UART Communication Conversion Board
US$6.15
This USB module allows users to interface any 5v or 3.3v microcontroller to communicate with their desktop/laptop environment. Simply insert the USB into any available port on your computer, install the drivers for the chip to be detected and connect four wires to your target device. Your target device can be a ATmega328p that is 3.3v or a 5v Arduino Pro mini. The board has five pins on the other side and on the back the description for each pin. Simply connect RX and TX to your target device with ground and determine what voltage the board operates at. You can use 5v or 3.3v depending on which pin you choose.
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AM-136 MP3 Audio in AD4 Format Playback Module for 3.3v Arduino
US$7.69
This product allows for direct playback of MP3 Audio files encoded in AD4 file format stored on a MicroSD/TF card. The module features an output that can drive an 8ohm speaker using the SPK+ and SPK+ pins. Alternatively, you can drive a single ended amplifier directly from the DAC output via the AUDIO-L pin. This unit also has some few dedicated pins to allow microcontroller signals to control playback features such as play and pause, track forward/backwards and volume up/down. You could also use a two wire serial interface to select the track and send playback controls.
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AM-129 Tilt Switch Module for 5v Microcontrollers
US$3.07
This breakout board features a simple tilt switch that allows users to interface using only three wires and no need for additional components. This board will deliver the state of the switch by digital signal of either on or off via the S pin. Holding the board with pins facing towards you, the left most pin labelled S is for signal. The middle pin is for 5v supply and the right most pin labelled – is for ground.
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AM-128 Mercury tilt Switch Module for 5v Microcontrollers
US$3.07
This breakout board features a simple mercury switch that runs at 5v. This switch will only be found in these two states either open or closed. This sensor is designed for tilt function in alarms, aircrafts, thermostats and other functions that required a tilt switch. Note: there is actually mercury inside the tube, if accidently broken dispose safely according to local regulations!
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AM-134 Simple PushButton Switch Module for 5v Microcontrollers
US$2.45
This unit is a simple pushbutton that will create a open circuit when the button is not pressed. When the button is pressed it will create a closed circuit and allow the S pin to output a 5v signal. Super simple for starter students to work with! Holding the board with the pins facing towards you, the left most pin labelled S is for digital signal output. The middle pin is for 5 VCC and the right most pin labelled – is for ground.
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AM-123 Red + Green dual color LED Module for 5v Microcontrollers
US$2.76
This module is a simple board that has a dual color LED onboard. The two colors that are available are green and red. When voltage is applied to one extremity and ground is from the center it will light up RED. When the user changes to the other extremity but keeps the center as ground it will change to Green. This neat little device makes it easier for users to program states to inform users the condition of the battery charge without having to integrate two individual LEDs.
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BB-PAM8403-P 2 Channel Stereo 3W+3W (PAM8403) Audio Amplifier
US$4.61
This mini audio amplifier features the PM8403 amplifier chip integrated onboard. It can take signal from a 3.5mm headphone jack and output to two speakers. The audio signal input and output is stereo capable meaning that you get left and right channel that are separate. Use the potentiometer onboard that allows you to adjust the volume of the output.
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SF-ROLLARM Robotic Arm Kit 4-Axis for Arduino
US$110.59
The Rollarm Kit for Arduino is designed for mass hobbyists to learn robot arm control. With the open source MCU Arduino UNO and a servo expansion board, the robot arm is easy to use and full of fun. You can control its four axes by the 4 potentiometers on the handle, as well as make them move on your computer. In addition, it can memorize the movements it's made and repeat again and again, making it a great tool for repeated tasks.
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