Despite that I am new to Arduino, I am tasked to invent a serious alarm system and I chose Arduino. I study electronics, but virtually I am a software programmer and C is my area of expertise.
I ordered the parts I think I will need and the time is immensely pushing me. The delivery goes slow and it needs to happen before our planned vacation, because we've been robbed several times so far. I need to know if I will need another gadgets to deal with a problem I've discovered suddenly.
I plan to stack up these 3 shields
- Arducam-F Shield V2 Camera module shield /w OV2640
- 3.5" TFT LCD Display Touch Screen Module
- SIM900 Quad-band GSM/GPRS Shield
From what I've learned the shields 1 and 3 are compatible, as the arducam uses CS/SD, ICSP, VCC, GND, SDA and SCL or according to standard pin out table: I2C_SCL, I2C_SDA, SPI_SCLK, SPI_MISO, SPI_MOSI, 9, 10, Reset, 5V, GND and the GPRS shield uses D7 and D0/D1(or D2/D3), 3 I/O ports. For D7.
The arducam however seems to be not stackable and as far as I can not see it is impossible to make it stackable (Maybe even if I drill holes and solder stackable shield headers) So it must be the topmost shield.
What about the LCD shield? I also learned that such shields use a lot of pins, so it is possible that there will be no free pins. I also ordered lots of jumper wires of any kind, if that can help. Maybe I don't need to wire each of the pins in order to make it work or do some extra coding to get it work? I also don't necessarily need the other shields to work while I operate with the screen, so maybe there is a way I can connect/disconnect shields separately with a program or something else I can buy. I have a feeling that this LCD shield will leave no pins for the other shields and I should connect the arducam on another way since it is not stackable.