DFRobot Mega IO Expansion Shield for Arduino MEGA

I have used the DFRobot Mega IO Expansion Shield for several Arduino projects. Seems to be good quality, and works as advertised. The "Wiki" information page is a bit sparse, but more-or-less provides the info you need. Also the price seems to be a bargain.

Used this for my wireless communication school project on top of my arduino mega. No compatibility issues. I love that fact that you could have up to 3 xbees on it and an sd card slot. For the price, its a good deal.

Really handy for simply wiring sensors and other modules. No need to build a turntable to power the hardware or be limited by shields or each connector "monopolize" 2 I / O. (on UNO) The possibility of being able to use an external power supply is also a not insignificant. I have not tried the Ports Bee and SD yet but for now it's great. (Soon I test the Bee).

Hatte bei den anderen Sensor Shields das Problem dass das Ethernet Shield nicht funktionierte (fehlender SPI Anschluss). Mit diesen Shield ist das kein Problem mehr und alles funktioniert. Die PWM Anschlüsse sind zwar verdeckt aber wenn man die Ethernet Shield Anschlüsse verlängert ist auch das kein Problem mehr. Mit diesen Shield spart man Geld und Platz. EINFACH TOP. Bestellvorgang-Zahlung-Lieferung auch ohne Probleme.

Very easily connect to "Gravity" series sensors. Note that this shield is meant for a 5v system. The PWR IN connector is meant to provide additional power if you connect a lot of high-drain devices like servos or relays, which is a nice touch.