ARM LPC2138/48 Mini Development Board – LED Interfacing

LPC 2138/48 mini development board has 3 SMD LED s connected to port pins P0.17, P0.18 & P0.19 via jumpers  J1 , J2 & J3. If any jumper is left open, then the corresponding port pin can be used independently. The sample code given below toggles the LEDs in fixed intervals.

SchematicNote: To use the LEDs, don’t forget to short the corresponding jumpers J1, J2 & J3. Leaving them open frees P0.17, P0.18 & P0.19 and can be used for any other desired purpose.

Sample Code


Topics related to ARM LPC2138/48 Mini Development Board

  1. ARM LPC2138/48 Mini Development Board – Overview
  2. ARM LPC2138/48 Mini Development Board – LED Interfacing
  3. ARM LPC2138/48 Mini Development Board – LCD Interfacing
  4. ARM LPC2138/48 Mini Development Board – UART0 Interfacing
  5. ARM LPC2138/48 Mini Development Board – UART1 Interfacing
  6. ARM LPC2138/48 Mini Development Board – Switches Interfacing
  7. ARM LPC2138/48 Mini Development Board – BUZZER Interfacing
  8. ARM LPC2138/48 Mini Development Board – POT Interfacing (ADC)
  9. ARM LPC2138/48 Mini Development Board – Temperature Sensor Interfacing(ADC)
  10. ARM LPC2138/48 Mini Development Board – Interfacing Servo motor
  11. ARM LPC2138/48 Mini Development Board – Internal Real Time Clock (RTC)
  12. ARM LPC2148 Mini Development Board – USB Interfacing (Human Interface Device)

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