RAK14001 RGB LED support (#2464)

* WIP

* WIP

* Moved it

* More random strobey behavior

* Guard to RAK4630 devices for now

* Oops

* Ship it

src/configuration.h

@@ -124,6 +124,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MPU6050_ADDR 0x68
 #define LIS3DH_ADR 0x18
 
+// -----------------------------------------------------------------------------
+// LED
+// -----------------------------------------------------------------------------
+#define NCP5623_ADDR 0x38
+
 // -----------------------------------------------------------------------------
 // Security
 // -----------------------------------------------------------------------------

src/detect/ScanI2C.h

@@ -33,6 +33,7 @@ class ScanI2C
         PMSA0031,
         MPU6050,
         LIS3DH,
+        NCP5623,
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;

src/detect/ScanI2CTwoWire.cpp

@@ -213,6 +213,7 @@ void ScanI2CTwoWire::scanPort(I2CPort port)
                 break;
 
                 SCAN_SIMPLE_CASE(ST7567_ADDRESS, SCREEN_ST7567, "st7567 display found\n")
+                SCAN_SIMPLE_CASE(NCP5623_ADDR, NCP5623, "NCP5623 RGB LED found\n");
 
 #ifdef HAS_PMU
                 SCAN_SIMPLE_CASE(XPOWERS_AXP192_AXP2101_ADDRESS, PMU_AXP192_AXP2101, "axp192/axp2101 PMU found\n")

src/main.cpp

@@ -100,6 +100,8 @@ uint8_t kb_model;
 ScanI2C::DeviceAddress rtc_found = ScanI2C::ADDRESS_NONE;
 // The I2C address of the Accelerometer (if found)
 ScanI2C::DeviceAddress accelerometer_found = ScanI2C::ADDRESS_NONE;
+// The I2C address of the RGB LED (if found)
+ScanI2C::FoundDevice rgb_found = ScanI2C::FoundDevice(ScanI2C::DeviceType::NONE, ScanI2C::ADDRESS_NONE);
 
 #if !defined(ARCH_PORTDUINO) && !defined(ARCH_STM32WL)
 ATECCX08A atecc;
@@ -344,6 +346,8 @@ void setup()
      * nodeTelemetrySensorsMap singleton. This wraps that logic in a temporary scope to declare the temporary field
      * "found".
      */
+    // Only one supported RGB LED currently
+    rgb_found = i2cScanner->find(ScanI2C::DeviceType::NCP5623);
 
 #if !defined(ARCH_PORTDUINO)
     auto acc_info = i2cScanner->firstAccelerometer();

src/main.h

@@ -26,6 +26,7 @@ extern ScanI2C::DeviceAddress cardkb_found;
 extern uint8_t kb_model;
 extern ScanI2C::DeviceAddress rtc_found;
 extern ScanI2C::DeviceAddress accelerometer_found;
+extern ScanI2C::FoundDevice rgb_found;
 
 extern bool eink_found;
 extern bool pmu_found;

src/modules/ExternalNotificationModule.cpp

@@ -8,6 +8,17 @@
 #include "mesh/generated/meshtastic/rtttl.pb.h"
 #include <Arduino.h>
 
+#include "main.h"
+
+#ifdef RAK4630
+#include <NCP5623.h>
+NCP5623 rgb;
+
+uint8_t red = 0;
+uint8_t green = 0;
+uint8_t blue = 0;
+#endif
+
 #ifndef PIN_BUZZER
 #define PIN_BUZZER false
 #endif
@@ -73,6 +84,15 @@ int32_t ExternalNotificationModule::runOnce()
                 millis()) {
                 getExternal(2) ? setExternalOff(2) : setExternalOn(2);
             }
+#ifdef RAK4630
+            if (rgb_found.type == ScanI2C::NCP5623) {
+                green = (green + 50) % 255;
+                red = abs(red - green) % 255;
+                blue = abs(blue / red) % 255;
+
+                rgb.setColor(red, green, blue);
+            }
+#endif
         }
 
         // now let the PWM buzzer play
@@ -84,6 +104,7 @@ int32_t ExternalNotificationModule::runOnce()
                 rtttl::begin(config.device.buzzer_gpio, rtttlConfig.ringtone);
             }
         }
+
         return 25;
     }
 }
@@ -106,6 +127,11 @@ void ExternalNotificationModule::setExternalOn(uint8_t index)
         digitalWrite(output, (moduleConfig.external_notification.active ? true : false));
         break;
     }
+#ifdef RAK4630
+    if (rgb_found.type == ScanI2C::NCP5623) {
+        rgb.setColor(red, green, blue);
+    }
+#endif
 }
 
 void ExternalNotificationModule::setExternalOff(uint8_t index)
@@ -126,6 +152,15 @@ void ExternalNotificationModule::setExternalOff(uint8_t index)
         digitalWrite(output, (moduleConfig.external_notification.active ? false : true));
         break;
     }
+
+#ifdef RAK4630
+    if (rgb_found.type == ScanI2C::NCP5623) {
+        red = 0;
+        green = 0;
+        blue = 0;
+        rgb.setColor(red, green, blue);
+    }
+#endif
 }
 
 bool ExternalNotificationModule::getExternal(uint8_t index)
@@ -200,6 +235,12 @@ ExternalNotificationModule::ExternalNotificationModule()
                 LOG_INFO("Using Pin %i in PWM mode\n", config.device.buzzer_gpio);
             }
         }
+#ifdef RAK4630
+        if (rgb_found.type == ScanI2C::NCP5623) {
+            rgb.begin();
+            rgb.setCurrent(10);
+        }
+#endif
     } else {
         LOG_INFO("External Notification Module Disabled\n");
         disable();
@@ -300,7 +341,6 @@ ProcessMessage ExternalNotificationModule::handleReceived(const meshtastic_MeshP
                     nagCycleCutoff = millis() + moduleConfig.external_notification.output_ms;
                 }
             }
-
             setIntervalFromNow(0); // run once so we know if we should do something
         }
 

variants/rak4631/platformio.ini

@@ -9,6 +9,7 @@ lib_deps =
   ${networking_base.lib_deps}
   melopero/Melopero RV3028@^1.1.0
   https://github.com/RAKWireless/RAK13800-W5100S.git#1.0.2
+  rakwireless/RAKwireless NCP5623 RGB LED library@^1.0.2
 debug_tool = jlink
 ; If not set we will default to uploading over serial (first it forces bootloader entry by talking 1200bps to cdcacm)
 ;upload_protocol = jlink

variants/rak4631_epaper/platformio.ini

@@ -8,6 +8,7 @@ lib_deps =
   ${nrf52840_base.lib_deps}
   zinggjm/GxEPD2@^1.4.9
   melopero/Melopero RV3028@^1.1.0
+  rakwireless/RAKwireless NCP5623 RGB LED library@^1.0.2
 debug_tool = jlink
 ; If not set we will default to uploading over serial (first it forces bootloader entry by talking 1200bps to cdcacm)
 ;upload_protocol = jlink

variants/rak4631_epaper_onrxtx/platformio.ini

@@ -10,6 +10,7 @@ lib_deps =
   ${nrf52840_base.lib_deps}
   zinggjm/GxEPD2@^1.5.1
   melopero/Melopero RV3028@^1.1.0
+  rakwireless/RAKwireless NCP5623 RGB LED library@^1.0.2
 debug_tool = jlink
 ; If not set we will default to uploading over serial (first it forces bootloader entry by talking 1200bps to cdcacm)
 ;upload_protocol = jlink