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Breadboard Power Supply Module

This breadboard adapter is a must have for prototyping on a breadboard. It supplies a selectable 3.3v and 5v to the breadboard rails with an on/off switch.
$4.70

Relay Module 1 Channel 5v

Relay module can be controlled directly via a microcontroller. Inputs are opto-isolated to protect any delicate control circuitry. There are LED indicators for each channel.
$5.60

Joystick

Directional movements are 2 potentiometers, 10k each. It also has a select button when pressed down. Joystick uses 5v, with a X, Y reading of 2.5v in rest position.
$5.60

Clock Module DS3231

Low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
$8.40

LCD Serial Interface Board I2C/TWI/SPI

As the pin resources of microcontroller is limited, your project may be not able to use normal LCD shield after connecting a few sensors or modules. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already have I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for any LCD based project.
$4.70

GPS Module NEO-6M

ublox/u-blox NEO-6M GPS module with antenna and build-in EEPROM. This module is compatible with APM2 and APM2.5, and EEPROM can save all your configuration data.
$22.40

Micro SD Card Adapter

This is a Micro SD card reader module. It communicates via SPI interface to the microcontroller to read and write files to the Micro SD card. Arduino users can directly use the Arduino IDE SD card library example to immediately start using the Micro SD card.
$4.70

GSM SIM900A Mini

SIM900A is a dual-band GSM/GPRS engine that works on frequencies EGSM 900MHz and DCS 1800MHz. SIM900A features GPRS multi-slot class 10/ class 8 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. The SIM900A is designed with power saving technique so that the current consumption is as low as 1.5mA in SLEEP mode. The SIM900A is integrated with the TCP/IP protocol; extended TCP/IP AT commands are developed for customers to use the TCP/IP protocol easily, which is very useful for those data transfer applications.
$25.20

RFID RC522

The MF522-AN module the the original Philips MFRC522 chip design circuit card reader, easy to use, low cost, and applies to the user equipment development, the reader and the development of advanced applications, the need for the user RF card terminal design/production. This module can be directly loaded into the various reader molds. Utilizes a voltage of 3.3V, through the SPI interface simple few lines directly with any user CPU motherboard connected communication can ensure that the module is stable and reliable work, distance card reader.
$9.30

Mini Thermal Printer

Add a mini printer to any microcontroller project with this very cute thermal printer. Thermal printers are also known as receipt printers, they're what you get when you go to the ATM or grocery store. Now you can embed a little printer of your own into an enclosure. This printer is ideal for interfacing with a microcontroller, you simply need a 3.3V-5V TTL serial output from your microcontroller to print text, barcodes, bitmap graphics, even a QR code!
$59.80

Relay Module 2 Channel 5v

Relay module can be controlled directly via a microcontroller. Inputs are opto-isolated to protect any delicate control circuitry. There are LED indicators for each channel.
$9.30