Merge pull request #251 from jpconstantineau/sleep-splits

added code to prevent sleeping when data is received from the other half

firmware/bluetooth.cpp

@@ -341,6 +341,8 @@ void notify_callback(BLEClientCharacteristic* chr, uint8_t* data, uint16_t len)
           KeyScanner::updateRemoteReport(remotedata.modifier,remotedata.keycode[0],remotedata.keycode[1],remotedata.keycode[2], remotedata.keycode[3],remotedata.keycode[4], remotedata.keycode[5]);
           KeyScanner::updateRemoteLayer(remotedata.layer);
           KeyScanner::remotespecialkeycode = remotedata.specialkeycode;
+          if (remotedata.modifier != 0 || remotedata.keycode[0] != 0)
+              keyboardstate.lastuseractiontime = millis();
         }      
       }
 
@@ -399,6 +401,7 @@ LOG_LV1("CB_CHR","layer_request_callback: len %i offset %i  data %i" ,len, data[
       {
         statedata=*(StatePayload*) data; // update state
         KeyScanner::updateRemoteLayer(statedata.layer);
+        keyboardstate.lastuseractiontime = millis(); // would this prevent both boards from sleeping because of the ping pong of data between sides?
       }  
 }
 #endif

firmware/firmware_main.cpp

@@ -1067,7 +1067,7 @@ void keyscantimer_callback(TimerHandle_t _handle) {
     sendKeyPresses();  
   #endif
    keyboardstate.lastuseractiontime = max(KeyScanner::getLastPressed(),keyboardstate.lastuseractiontime); // use the latest time to check for sleep...
-   unsigned long timesincelastkeypress = keyboardstate.timestamp - keyboardstate.lastuseractiontime;
+   unsigned long timesincelastkeypress =  (keyboardstate.timestamp > keyboardstate.lastuseractiontime) ? keyboardstate.timestamp - keyboardstate.lastuseractiontime : 0;
 
   #if SLEEP_ACTIVE == 1
     switch (keyboardstate.connectionState)