Replacement: None. We are no longer stocking this board, but check out our other LPC development boards. This page is for reference only.

Compact development board with key pad, back lit LCD, buzzer, and relay.

• MCU: 16/32 bit** LPC2138**
• 512K Bytes Program Flash, 32K Bytes RAM, 8 Channel 10-bit ADC, RTC, 2x UARTs, I2C, SPI, 2x 32bit TIMERS, 8x CCR, 6x PWM, WDT, 5V tolerant I/O, up to 60MHz operation
• 14.7456 MHz crystal divides down for easy communication setup
• Internal 4x PLL = 58.9824 MHz CPU clock
• JTAG connector as per ARM's 2x10 pin layout, ARM-JTAG (Wiggler) compatible
• RS232 interface circuit
• LCD16x2 display with LED Backlight
• Five buttons
• Dallas iButton port
• Frequency input
• Relay with 10A/250VAC contacts
• Buzzer
• Status LED
• RESET circuit
• Boot loader enable jumper and pull-up
• DBGSEL, RTCK pull-up resistors
• Power supply: 6VAC/+9VDC
• Three on board voltage regulators rated up to 800mA - 1.8V, 3.3V, and 5V
• Power supply decoupling/filter capacitors
• Four mounting holes
• PCB: FR-4, 1.5 mm (0.062"), green solder mask, white silkscreen component print

• 4.75x1.5" (120x38mm)

• Schematic
• LPC-MT-2138.pdf
• LPC-MT-2138.chm
• LCD drive code
• RTC code
• RS232 code
• Button, Relay, LED, buzzer demo code