Products

This product prevents/disconnects the load when an under-voltage condition occurs. The circuit latches the output when input sense voltage drops below the lockout threshold. Lockout threshold voltage can be adjusted using the onboard trimmer potentiometer PR1.  Tactile switch SW1 is provided to reset the latch when input sense voltage is back to normal. The circuit consists of a MAX835 chip, 5V Relay, BC857 PNP transistor to drive the Relay, power LED, Relay/Output LED, and tactile switch. MAX835 chip features a level-sensitive latch, eliminating the need to add hysteresis to prevent oscillations in load-disconnect applications.

B135

If you need to interface many devices and sensors to Arduino Nano, then, this project is for you. This is a Nano expansion I/O shield (breakout board) for the Arduino Nano. The board facilitates the easy connection between Arduino Nano and other devices.  Each Arduino (I/O) Pin including the 5V DC and GND pins are available for easy connection to the sensors and other devices. The board enables the easy interface of many devices and sensors which includes various power voltage options. It provides several different options for power outputs and wide range of operating power supply input.

C118
 

This is an 8-channel remote in a compact board suitable for remote ON/OFF applications using Bluetooth or Wi-Fi protocol. The board consists of an ESP32 module and 8 tactile switches connected to various GPIO. The circuit works with 3.3V_DC power supply and a Li-Ion battery can be used to power the board. The onboard LED indicates the power. There is an onboard programming connector that helps users program the ESP32 module using Arduino IDE. The users have to write their own code to use the module, according to their requirements.

H102

This is a fault protected RS485 shield for OLEDUINO-V2, SN65HVD1782 chip used as RS485 transreceiver, designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. The devices are also robust to ESD events with high levels of protection to the human-body-model specification.

C119

This is low cost and extremely accurate I2C real-time clock (RTC) module that consists of DS3231M low-cost RTC chip, on board 3V battery to maintain accurate timekeeping when main power to the device is interrupted. The integration of the microelectromechanical systems (MEMS) resonator enhances the long-term accuracy of the device.

C120

The project presented here is a high-side switch (8 channels) with MOSFET output. The Arduino board consists of an Arduino-compatible microcontroller ATMEGA328 and TPD2015FN – 8 Channels MOSFET switch. All 8 inputs of TPD2015FN are TTL compatible. The project is suitable for driving inductive and resistive loads such as industrial programmable logic controllers, motors, and lamps in factory automation equipment, etc. This product has built-in overcurrent and over-temperature protection functions, which contribute to improved stability of the system.

B156
 

Digital-to-analog converters (DACs) provide accurate output voltages for actuation and control in many electronic applications such as industrial, medical, and RF systems.  The MAX5715 is a highly accurate, four-channel, 12-bit voltage output DAC. Development with DACs involves expertise in analog systems, power supplies, digital interfaces, and firmware. Now, the MAX5715 module is introduced to accelerate the development process. This module helps for rapid prototyping and development with the MAX5715 (a 12-bit, 4-channel, voltage-output DAC). DAC module interfaces to any Arduino-compatible or embed-compatible platform system with expansion ports configurable for SPI communication. The board directly interfaces to SPI with logic levels in the range of 2.7V to 5.5V.

C101
 

The project presented here uses the  MAX5541  chip, a serial-input, voltage-output, 16-bit monotonic digital-to-analog converter (DAC) that operates from a single  +5Vdc  supply. Notably, the DAC output is unbuffered, resulting in a low supply current of  0.3mA  and a minimal offset error of  1 LSB. The DAC output range spans from  0V to VREF, providing a wide range of voltage output options.

C103

This board created for makers, who want to use various Arduino UNO shields with PIC micro-controllers from Microchip. Board facilitates the use of any 28 PIN DIP PIC microcontroller with or without crystal. Omit Y1 , C9 and C10 in case of internal oscillator . Project can also be used to develop RS485 applications with the help of on board SN75176 IC. Two regulators provide 3.3V and 5V DC outputs. ICSP connector provided to program the PIC IC using PICKIT2/PICKIT3 programmer. On board DC jack connector and additional CN2 Header connector helps to power up the board. Input supply 7V-15V DC. This board has been tested using PIC16F886 IC. The board also supports PIC18F2331 and PIC18F2431 PICs mainly used for motor applications. Solder R9 and C8 if Motor PICs are used or left open for normal microcontrollers. Switch 1 helps to reset the board. Refer  to PCB top layout for Arduino to Microchip Pin configuration.

C102

The project described here is a Quad-channel digital isolator with  5000V_RMS  isolation ratings per  UL 1577. The board has three forward and one reverse-direction channel which makes this project ideal for isolated SPI interface between microcontroller and subnode unit. The circuit provides isolation between the main SPI unit (microcontroller) and the SPI slave. It has high electromagnetic immunity, reduces noise, and high voltage traveling to the main unit. All the outputs are normally high, use ENABLE pins to disable the outputs. Connecting Enable 1 and Enable 2 pins to GND respective sides puts all outputs LOW and all outputs are disabled. If the input power or signal is lost then the output goes high. Level translation range:  2.25V to 5.5V.

C105

Optically isolator Arduino Shield has been designed to provide optically isolated I2C communication between Arduino and any other device or sensors that works with  I2C  protocols. I have used the  ISO1540  Low-Power Bidirectional I2C Isolator IC from  Texas Instruments  to build this project, and the device is compatible with I2C interfaces. These devices have logic input and output buffers that are separated by Texas Instruments Capacitive Isolation technology using a silicon dioxide (SiO2) barrier. When used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging the Arduino board. The  ISO1540  has two isolated bidirectional channels for clock and data lines. The project is suitable for multi-master applications. For applications where clock stretching by the slave is possible. LED D1 is the power indicator for side two. This board requires two separate supplies, side one powered from Arduino UNO 5V, side 2 require separate 3.3V to 5V.

C106

The project presented here is a USB port-powered, USB 2.0 isolator that isolates the USB host and USB device. It is a galvanically-isolated USB2.0 repeater, that supports low speed  1.5Mbps,  and full speed  12Mbps  communication. The project automatically connects and detects the bus speed. This  USB 2.0 isolator  is efficiently powered from the USB port and requires no external power, on board isolated DC-DC converter U1 provides 5V to the other side of the circuitry and USB port. U2 LDO provides  3.3V  to the chip. L1 and L2 ferrite beads take care of noise immunity on the DC bus. The project protects the host USB port from noise and high voltage.

C107