I have a question on the lcd display (product number: RB-Dfr-07). Is there any up-to-date pinout diagram for it. The diagram on the “Useful Links” tab is for a version that does not have some of the headers. If there is none, does anyone know what the row of headers on top do? It says APC&BT and GRD on one side and VCC on the other but I checked with a meter and there is no voltage. The “manual” says it is not stackable but then it would seem pretty useless if only sensors can be connected to the extending analog ports.
Thank you for replying,
I did not mean stacking shields on top but could the pins that are available be used for example connecting to the control pin of a servo and as the servo turned the lcd shield would display the pulse sent. I ask because I bought the shield so that as my robot moved based on sensor input the lcd would display which motor was turning, where it was going, what the sensor value was (the shield has headers for sensors which I can connect to) etc. I’m kind of stumped as to where can I plug a motor in.
The APC220 / BT slot is for the DFRobot APC220 RF modules (currently not on our website) or DFRobot Bluetooth module. There is not point in putting another shield on top of the LCD shield since it would defeat the purpose of having an LCD display (it would be covered). Other shields can be stacked below it so long as they don’t use the same pins.
Understood - unfortunately not - they are male pins which are soldered to the top of the board. If you want to plug in servos as well as the LCD shield, you can use additional stacking headers to create extra space between an IO shield (on the bottom) and the LCD shield (on the top). Alternatively, the ROMEO has pins on the sides.
