Beetle is a extremely small Arduino leonardo board. It derives its core notion from minimalism without compromising functionality.

As the smallest version of Arduino Leonardo, it enjoys similar powerful functionalities. Beetle aims to solve problems of low-cost controller, ease-of-using properly, and to provide a low cost solution for disposable projects, such as DIY projects, workshops, gift projects, E-Textiles and educational. For students and makers who can not afford too much on hardware purchasing, Beetle can be a great solution for them.

This RS232 shield is designed for the Arduino controller,and it can easily convert UART to RS232 interface.

RS485 is an industrial standard for long dsitance, anti-interferrence and reliable communication. So we create this RS485 Arduino shield, especially designed for the Arduino controller board. It converts UART/Serial protocol to RS485 protocol. This board allows Arduino access to industrial standard protocol easily.

• Integrated a standard RS485 port ,a mini RS485 port, RS485 headers
• Provide the welding areas to make full use of the free space. And more importantly, it's convenient for your DIY design.
• Switch between automatic mode and manual transmission mode, which expand the scope of application.
• Besides Tx/Rx interface, there is a switch to block/disable this shield, when Arduino needs to be programmed.
• Gold immersion PCB. Long pins on the back adapt to most Arduino controllers.

This is a basic breakout board for the FTDI FT232RL USB to serial IC. The pinout of this board matches the FTDI cable to work with official Arduino and cloned 3.3V Arduino boards. It can also be used for general serial applications. The major difference with this board is that it brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded. This is a really nice feature to have and allows a sketch to be downloaded without having to hit the reset button. This board will auto reset any Arduino board that has the reset pin brought out to a 6-pin connector.

This is a simple RS232 to RS485 converter that is self powered using the TX, RX or RTS, CTS signals for power. The RS232 is DB9 female connector, and the RS422 side is a DB9 male or 4 position terminal block.

It is able to convert RS232 signal to RS485 balanced differential signal and extend the communication distance to 1.2km.
It is passive and doesn't require external power.

It is compatible with our URM04 ultrasonic sensor.

The upgraded Arduino Input Shield includes a two axis mini joystick (with moment switch) as well as four colored push buttons(Red,Yellow,Blue,Green). The reserved APC220 Radio Data Module(SKU:TEL0005) interface and the Xbee interface is deisgned to facilitate the realization of wireless rocker button controller. The shield can be easily stacked on top of your Arduino boards. It can also connect with OLED2864 & OLED9664.