Search results for 'keypad'

LPC2148 is a single-chip 32-bit RISC Microcontroller with 512KB on-chip Flash ROM with In-System Programming (ISP) and In-Application Programming (IAP) 32KB RAM having Interrupt Controller, Two 10bit ADCs with 14 channels, USB 2.0 Full Speed Device Controller, Two UARTs, one with full modem interface. Two I2C serial interfaces, Two SPI serial interfaces Two 32-bit timers, Watchdog Timer, PWM unit, Real Time Clock with optional battery backup, Brown out detect circuit General purpose I/O pins. CPU clock up to 60 MHz, On-chip crystal oscillator and On-chip PLL.

Order Code : RDL/LPB-48/14/001/V1.0

LPC2129 is a single-chip 32-bit microcontroller with 256KB on-chip Flash ROM with In-System Programming (ISP) and In-Application Programming (IAP) 16KB RAM having Real Time Clock, Watchdog Timer, General purpose I/O pins. CPU clock up to 60 MHz, On-chip crystal oscillator and On-chip PLL. This IC also supports Interrupt Controller, 2 SPI serial interfaces, Two UARTs, I2C serial interface, PWM unit with up to 6 PWM outputs, Two timers (7 capture/compare channels),  4-channels 10bit ADC, 2 CAN channels. 

Order Code : RDL/LPB/14/001/V1.0

ATMEGA are popular with both industrial developers and hobbyists alike due to their low cost, wide availability, large user base, extensive collection of application notes, availability of low cost or free development tools. They are also commonly used in educational programs.

Order Code : RDL/ADB/14/001/V1.0

8051 are popular with both industrial developers and hobbyists alike due to their low cost, wide availability, large user base, extensive collection of application notes, availability of low cost or free development tools, and serial programming (and re-programming with flash memory) capability. They are also commonly used in educational programming.

Order Code : RDL/8051-U/14/001/V1.0

PICs are popular with both industrial developers and hobbyists alike due to their low cost, wide availability, large user base, extensive collection of application notes, availability of low cost or free development tools. They are also commonly used in educational programming .

Order Code : RDL/PIC-U/14/001/V1.0

8051 are popular with both industrial developers and hobbyists alike due to their low cost, wide availability, large user base, extensive collection of application notes, availability of low cost or free development tools, and serial programming (and re-programming with flash memory) capability. They are also commonly used in educational programming .

Order Code : RDL/8DB/14/001/V1.0

Due to their low cost, wide availability, large user base and free development tools make PIC Development Boards popular among the Industrial Developers, Educational Programmers and Hobbyists

Order Code : RDL/PDB/14/001/V1.0

One of the basic interfacing requirements for the hobbyists or electronics enthusiasts is I/P (keypad) and O/P (LCD display)  for proyotype applications. This shield uses minimum number I/O’s that is 2 bits(D0 and D1) for LCD data . 5 input key switches (Navigation keys), when it's activated serial data will be sent to pin  D0 by internal 2 line LCD controller. Each key has been pulled up to a different voltage level, so a different voltage will be generated every time a user selects a key. This voltage could be read by the analog pin of internal 2 line LCD controller on the board. Hence saves the no of I/O pins.  The backlight of the LCD could be controlled by setting PWM (Pin D10) by adding a few lines of code.

Order Code : RDL/LKS/14/001/V1.0

A 4x4 matrix keypad requiring eight Input/Output ports for interfacing isused as an example. Rows are connected to Peripheral Input/Output (PIO) pins configured as output. Columns are connected to PIO pins configured as input with interrupts. In this configuration, four pull-up resistors must be added in order to apply a high level on the corresponding input pins.

Note: The color of the PCB may vary. However the circuit/pinout of the PCB will remain same.

Order Code : RDL/4X4KP/13/001/V2.0