@frameworklabs This worked for me with my cute AtomS3! #include <M5Unified.h> void setup() { M5.begin(); Serial.begin(115200); M5.Lcd.fillScreen(BLACK); delay(100); } void loop() { Serial.println("loop"); M5.update(); M5.Lcd.setTextColor(RED); M5.Lcd.setTextSize(2); M5.Lcd.setCursor(25, 15); M5.Lcd.print("RED"); M5.Lcd.setTextColor(BLUE); M5.Lcd.setTextSize(2); M5.Lcd.setCursor(18, 50); M5.Lcd.print("BLUE"); M5.Lcd.setTextColor(GREEN); M5.Lcd.setTextSize(2); M5.Lcd.setCursor(15, 90); M5.Lcd.print("GREEN"); delay(100); } But with Tools setting: USB CDC on Boot 'enabled' -Terry

Alternatively - using M5Unified you can also call: M5.Display.sleep(); To wake it up again use: M5.Display.wakeup();

@felmue yes most definitely an external power supply.

Hi @pandian-nano, Thanks! That was super helpful! That took care of the problem but now I'm getting the following error: "name 'now' isn't defined' Trying to figure out what's going on... it would be so fun to use ESP-Now on this thing :] I know I could probably use the arduino ide to do this, but I was just starting to get excited about UIFlow, it's pretty neat!