Force an update of CCs on config request.

When we get a config request over sysex, force a midi write
in 1s time.

firmware/16n_faderbank_firmware/16n_faderbank_firmware.ino

@@ -60,6 +60,9 @@ const int adcResolutionBits = 13; // 13 bit ADC resolution on Teensy 3.2
 int faderMin;
 int faderMax;
 
+bool shouldSendForcedControlUpdate = false;
+int sendForcedControlAt;
+
 // variables for i2c master mode
   // memory of the last unshifted value
   int lastValue[channelCount];
@@ -314,6 +317,16 @@ void loop()
     }
   }
 
+  if(shouldSendForcedControlUpdate && (millis() > sendForcedControlAt)) {
+    // it's now time to send a forced control update, so...
+
+    // disable this
+    shouldSendForcedControlUpdate = false;
+
+    // this will force a write the next time the midiWrite callback fires.
+    forceMidiWrite = true;
+  }
+
   // read loop using the i counter
   for (int i = 0; i < channelCount; i++)
   {

firmware/16n_faderbank_firmware/sysex.ino

@@ -25,6 +25,11 @@ void processIncomingSysex(byte* sysexData, unsigned size) {
       // 1F = "1nFo" - please send me your current config
       D(Serial.println("Got an 1nFo request"));
       sendCurrentState();
+
+      // also, in 1s time, please send the current state
+      // of the controls, so the editor looks nice.
+      shouldSendForcedControlUpdate = true;
+      sendForcedControlAt = millis() + 1000;
       break;
     case 0x0e:
       // 0E - c0nfig Edit - here is a new config