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LEM click

MIKROE-2553

Status:Out of Stock

LEM click carries the LTS 6-NP current transducer and MCP3201 ADC converter. The click can measure AC and DC current with exceptional speed, up to 200 KHz. LEM click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over SPI interface, or directly with analog output.

More details

$59.00

Quantity Unit Price
5 $56.05
20 $53.10
LEM click carries the LTS 6-NP current transducer and MCP3201 ADC converter. The click can measure AC and DC current with exceptional speed, up to 200 KHz. LEM click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over SPI interface, or directly with analog output.

DO NOT TOUCH THE BOARD WHILE THE EXTERNAL POWER SUPPLY IS ON!

Note: LEM click has exposed pins/pads. To stay safe take precaution when applying high voltage to the click. The click is to be used by trained personnel only when applying high voltage.

LTS 6-NP features

LTS 6-NP is a closed loop (compensated) multi-range current transducer using the Hall effect.

Intended for electronic measurement of currents: DC, AC, pulsed, mixed with galvanic separation between the primary circuit and the secondary circuit.

How it works

The conductor can be placed through the hole on the sensor:



There is on board ADC to read out the analog output value of the sensor, or it can be read from the AN pin.

MCP3201 A/D converter

The MCP3201 is a 12-bit Analog-to-Digital (A/D) Converter with on-board sample and hold circuitry. The device provides a single pseudo-differential input.

The MCP3201 is capable of sample rates of up to 100 ksps at a clock rate of 1.6 MHz.

Key features

  • LTS 6-NP current transducer
    • Unipolar voltage supply
    • Incorporated measuring resistance
    • Low temperature drift
    • Optimized response time
  • MCP3201 ADC converter
  • SPI interface
  • 3.3V or 5V power supply

Downloads

Type Measurements
Applications LEM click can be used for AC variable drives, Servo motor control, Power supplies, etc.
On-board modules LTS 6-NP current transducer, MCP3201 A/D converter
Key Benefits The click can measure AC and DC current with exceptional speed, up to 200 KHz.
Interface SPI
Peripherals include Onboard screw terminal
Power Supply 3.3V or 5V
Compatibility mikroBUS
Click board size L (57.15 x 25.4 mm)

Pinout diagram

This table shows how the pinout on LEM click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png
mikroBUStm
Pin Notes
Analog output AN 1 AN PWM 16 NC Not connected
Not connected NC 2 RST INT 15 NC Not connected
Chip select CS 3 CS TX 14 NC Not connected
SPI Clock SCK 4 SCK RX 13 NC Not connected
SPI Master Input Slave Output MISO 5 MISO SCL 12 NC Not connected
Not connected NC 6 MOSI SDA 11 NC Not connected
Power supply +3.3V 7 3.3V 5V 10 +5V Power supply
Ground GND 8 GND GND 9 GND Ground

Jumpers and settings

Designator Name Default Position Default Option Description
JP1 PWR.SEL. Left 3V3 Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V

LEDs and buttons

Designator Name Type Description
TB1 SCREW TERMINAL Current input to sensor

Programming

Code examples for LEM click, written for MikroElektronika hardware and compilers are available on Libstock.

Code snippet

The following code snippet shows the example for LEM click, which calls functions that will initialize both the click and the display, and then show measured data.

01 static void systemInit( void )
02 {
03    LEM_init();
04 }
05 
06 void main()
07 {
08    float currentRead;        /**< Read value */
09    char txt[10];             /**< Read value as string */
10    char oldTxt[10];          /**< Old read value */
11    char lab[10] = {0};      /**< Current label text */
12    char res;                 /**< Comparing of old and new value */
13 
14    systemInit();
15    displayInit();
16 
17 
18    while(1)
19    {
20        currentRead = getCurrent_A();
21        sprintf(txt, "%2.3fA", currentRead);
22        res = strcmp(txt,oldTxt);
23        if(res != 0)
24        {
25            updateLabel(txt, 180, 140, lab);
26            strcpy(oldTxt,txt);
27        }
28        delay_ms(250);
29    }
30 
31 }

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