diff --git a/firmware/main.c b/firmware/main.c
index f162d1e..9e36e2e 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -593,6 +593,8 @@ error:
 void ir_action(uint8_t address, uint8_t command)
 {
 	enum IR_ACTIONS ir_code = IR_ACTION_END;
+	static uint8_t channel = CHANNELS_1+CHANNELS_2;
+	uint8_t step = 0xff/LEVELS;
 	for (ir_code=0; ir_code<IR_ACTION_END; ir_code++) {
 		if (ir_keys[ir_code][0]==address && ir_keys[ir_code][1]==command) {
 			break;
@@ -610,14 +612,47 @@ void ir_action(uint8_t address, uint8_t command)
 				PINB |= (1<<nPS_ON);
 				break;
 			case MODE:
+				mode = (mode+1)%MODES;
+				printf("selecting mode %u/%u\n",mode+1,MODES);
+				channel_flag = true;
 				break;
 			case BRIGHTNESS_UP:
+				if (channel<CHANNELS_1+CHANNELS_2) {
+					if (brightness[mode][channel]<0xff-step) {
+						brightness[mode][channel] += step;
+					} else {
+						brightness[mode][channel] = 0xff;
+					}
+					printf("increasing brightness ch %u %u: %u\n",(channel/CHANNELS_1)+1,(channel%CHANNELS_1)+1,brightness[mode][channel]);
+				}
+				channel_flag = true;
 				break;
 			case BRIGHTNESS_DOWN:
+				if (channel<CHANNELS_1+CHANNELS_2) {
+					if (brightness[mode][channel]>step) {
+						brightness[mode][channel] -= step;
+					} else {
+						brightness[mode][channel] = 0x00;
+					}
+					printf("increasing brightness ch %u %u: %u\n",(channel/CHANNELS_1)+1,(channel%CHANNELS_1)+1,brightness[mode][channel]);
+				}
+				channel_flag = true;
 				break;
 			case CHANNEL_NEXT:
+				if (channel<CHANNELS_1+CHANNELS_2) {
+					channel = (channel+1)%(CHANNELS_1+CHANNELS_2);
+				} else {
+					channel = 0x00;
+				}
+				printf("selecting channel ch %u %u (%u)\n",(channel/CHANNELS_1)+1,(channel%CHANNELS_1)+1,brightness[mode][channel]);
 				break;
 			case CHANNEL_PREVIOUS:
+				if (0==channel) {
+					channel = CHANNELS_1+CHANNELS_2-1;
+				} else {
+					channel--;
+				}
+				printf("selecting channel ch %u %u (%u)\n",(channel/CHANNELS_1)+1,(channel%CHANNELS_1)+1,brightness[mode][channel]);
 				break;
 			default:
 				printf("unhandled IR action: %u\n", ir_code);