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A cute tiny piece of code implementing an IoT NAND device, demonstrating how to setup and advertise a cute GATT (NAND) service. The code has been tested on a Nordic nRF51822-DK.
Dependencies: BLE_API mbed nRF51822
Fork of BLE_HeartRate_IDB0XA1 by
main.cpp@26:dce30a5341bb, 2018-05-19 (annotated)
- Committer:
- hux
- Date:
- Sat May 19 14:10:17 2018 +0000
- Revision:
- 26:dce30a5341bb
- Parent:
- 25:339931243be4
Published
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hux | 23:2e73c391bb12 | 1 | // N06_NAND: demonstration of 'NAND' GATT service |
hux | 23:2e73c391bb12 | 2 | // Program has been tested on nRF51822-DK |
hux | 23:2e73c391bb12 | 3 | |
hux | 23:2e73c391bb12 | 4 | #include "bricks/bricks.h" |
apalmieri | 13:227a0149b677 | 5 | |
hux | 23:2e73c391bb12 | 6 | Service tiny(0xA000,"Tiny"); // Tiny Service |
hux | 23:2e73c391bb12 | 7 | Characteristic<Digital> chrInput1(tiny, 0xA001, "w", "Input1"); |
hux | 23:2e73c391bb12 | 8 | Characteristic<Digital> chrInput2(tiny, 0xA002, "w", "Input2"); |
hux | 23:2e73c391bb12 | 9 | Characteristic<Digital> chrOutput(tiny, 0xA003, "n", "Output"); |
screamer | 0:eb7f02ad28a7 | 10 | |
hux | 23:2e73c391bb12 | 11 | void cbWritten(O&o) // data written callback |
hux | 22:d467526abc4a | 12 | { |
hux | 23:2e73c391bb12 | 13 | Digital in1, in2, out; // need some local variables |
hux | 23:2e73c391bb12 | 14 | |
hux | 23:2e73c391bb12 | 15 | if (updated(o,chrInput1) || updated(o,chrInput2)) // changed inputs? |
hux | 23:2e73c391bb12 | 16 | { |
hux | 23:2e73c391bb12 | 17 | get(o,chrInput1,in1); // get value of Input1 characteristics |
hux | 23:2e73c391bb12 | 18 | get(o,chrInput2,in2); // get value of Input2 characteristics |
hux | 23:2e73c391bb12 | 19 | out = !(in1 && in2); // perform NAND (Not AND) operation |
hux | 23:2e73c391bb12 | 20 | set(o,chrOutput,out); // store result to Output characteristics |
hux | 23:2e73c391bb12 | 21 | } |
hux | 22:d467526abc4a | 22 | } |
hux | 22:d467526abc4a | 23 | |
hux | 23:2e73c391bb12 | 24 | void cbDisconnect(O&o) // disconnection callback |
hux | 22:d467526abc4a | 25 | { |
hux | 23:2e73c391bb12 | 26 | advertise(o); // resume advertising on disconnection |
hux | 22:d467526abc4a | 27 | } |
hux | 23:2e73c391bb12 | 28 | |
hux | 25:339931243be4 | 29 | int main(void) |
hux | 22:d467526abc4a | 30 | { |
hux | 25:339931243be4 | 31 | O o; // Oh-ohh - our Blob (BLuetooth OBject) |
hux | 25:339931243be4 | 32 | init(o); // init BLE base layer, always do first |
hux | 25:339931243be4 | 33 | |
hux | 23:2e73c391bb12 | 34 | onDisconnect(o,cbDisconnect); // setup disconnection callback |
hux | 23:2e73c391bb12 | 35 | onWritten(o,cbWritten); // setup data written callback |
hux | 23:2e73c391bb12 | 36 | |
hux | 23:2e73c391bb12 | 37 | device(o,"NAND Gate"); // setup device name |
hux | 25:339931243be4 | 38 | name(o,"N06#2.0 NAND"); // add name to device |
hux | 23:2e73c391bb12 | 39 | enroll(o,tiny); // enroll (register) TINY service |
screamer | 0:eb7f02ad28a7 | 40 | |
hux | 23:2e73c391bb12 | 41 | advertise(o,"C:ng",100); // start advertising @ 100 msec interval |
apalmieri | 13:227a0149b677 | 42 | |
hux | 23:2e73c391bb12 | 43 | for(;;) sleep(o); // low power waiting for BLE events |
hux | 23:2e73c391bb12 | 44 | } |