2. Soldering the headers Before using your click board , make sure to solder 1x8 male headers to both left and right side of the board. Two 1x8 male headers are included with the board in the package. 1 Comparator click 2 3 4. Essential features Comparator click can be used with a single or dual power supply. If a single power supply is used, the offset voltage can be as low as 2.0 mV, with a range from 2.0 VDC to Turn the board upside down so that Turn the board upward again. Make sure 36 VDC. For dual supplies, the range is from the bottom side is facing you upwards. to align the headers so that they are 1.0 VDC to 18 VDC. The resulting output Place shorter pins of the header into the perpendicular to the board, then solder the is compatible with TTL, DTL, ECL, MOS and appropriate soldering pads. pins carefully. CMOS logic systems. 1. Introduction 3. Plugging the board in Comparator click, carrying the LM2903 IC, has click two independent precision voltage compara- Once you have soldered the headers your tors. Two pairs of screw terminals allow you board is ready to be placed into the desired BOARD to connect separate inputs (additional two mikroBUS socket. Make sure to align the www.mikroe.com screw terminals are for GND connections). cut in the lower-right part of the board with Two potentiometers are placed between the markings on the silkscreen at the the terminals and the IC. Each input has its mikroBUS socket. If all the Comparator click manual ver 1.01 own Interrupt pin on the mikroBUS socket pins are aligned correctly, (one on the INT pin, the other in place of the push the board all the way mikroBUS AN pin), here marked 01 and 02. into the socket. 0100000080429OUTPUT1 8. Code examples 5. Schematic Once you have done all the necessary preparations, its time to get your click board VCC VCC VCC up and running. We have provided examples OUT1 Out 1 V+ Q5 Q6 R7 R8 for mikroC , mikroBasic and mikroPascal C1 20K 20K IN1- OUT2 OUT1 OUT2 In 1- Out 2 compilers on our Libstock website. Just 100nF IN1+ IN2- In 1+ In 2- download them and you are ready to start. Q2 Q4 Q1 Q3 IN2+ GND In 2+ VCC LM 2903 .com R1 R5 R2 R4 R6 R3 R9 2K2 1K2 1K2 4K7 4K7 2K2 2K2 IN2+ HI1 LO1 LO2 HI2 PWR 9. Support CON3 VCC VCC P2 IN2- AN PWM RST INT MikroElektronika offers free tech support CS TX SCK RX (www.mikroe.com/support) until the end of SCL CON2 MISO the products lifetime, so if something goes MOSI SDA +3.3V +5V wrong, were ready and willing to help GND GND IN1+ MIKROBUS CON1 P1 IN1- VCC-3.3V VCC-5V VCC J1 6. Dimensions 7. SMD jumper 10. Disclaimer LOGIC SEL is used MikroElektronika assumes no responsibility mm mils to determine or liability for any errors or inaccuracies whether 5V or that may appear in the present document. LENGTH 57.15 2250 3.3V logic level Specification and information contained in WIDTH 25.4 1000 is used on the the present schematic are subject to change HEIGHT* 15 590 interrupt pins. at any time without notice. 57.15 / 2250 mils * without headers Copyright 2015 MikroElektronika. All rights reserved. 25.4 mm / 1000 mils OUTPUT2