PCA9685 16-Channel 12-Bit PWM Servo Driver can help a lot when there are insufficient PWM output pins for the MCU. The only condition is that the main control chip supports I2C communication, which means enabling the communication between the chip and PCA9685, so as to control multiple servos simultaneously. 

ORDER CODE: RDL682

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 4 bits for LCD data and 2 control signal lines for the same. A single analog pin (Pin A0) is multiplexed to read 5 input key switches (Navigation keys). 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 A0 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/RLSS/14/001/V1.0

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/LPC-48/14/001/V1.0

The Moisture level of the soil can be detected by this sensor. When the water level is low in the soil, the analog Voltage will be low and this analog voltage keeps increasing as the conductivity between the electrodes in the soil changes. This sensor can be used for watering a flower plantor any other plants requires automation.

Order Code : RDL/ASMS/14/001/V1.0

Manufacturer Part No:ATMEGA328P-AU

The Atmel® picoPower® ATmega328/P is a low-power CMOS 8-bit microcontroller based on the AVR® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega328/P achieves throughputs close to 1MIPS per MHz. This empowers system designer to optimize the device for power consumption versus processing speed.

Smart Solar Based Drip Irrigation-UNO

The components of solar powered intelligent drip irrigation system are shown in Fig. Soil moisture sensor is used for real-time collection of crop root soil moisture content and converting it into a signal in the range of Voltage V; and the signal will transformed as knowledge of water requirement of crop. Soil moisture content at the root zone of different crops is collected by using the soil moisture sensor. The threshold limit for the water requirement for a particular crop has been feed to system which in turn controls the operation the control system. The power needed for the operation of the control system has been met with the use of a solar panel and the display will receive the control signal and display the data stored using the sensor from the field.

Order code:RDL/DIY-DRU/14/001/V1.0

The breadboard power supply kit that takes power from a DC adapter jack  and provide outputs a selectable 1.8V,3.3V,5V,9V,12V and custom adjustable voltage from 0V to 12V.  Breadboard power supply headers are mounted on the bottom of the PCB for simple insertion into a breadboard.

Order Code: RDL617