16 Bit I2C 4 Channel ADS1115 Module 16 Bit I2C 4 Channel ADS1115 Module is mostly used for microcontrollers project which needs an analog-to-digital converter or when you want a higher-precision ADC. ADS1115 16-Bit ADC- provides 16-bit precision at 860 samples/second over I2C. The chip can be configured as 4 single-end input channels or two differential channels. Additionally, ADC also includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. It can run from 2V to 5V power/logic, can measure a large range of signals and it’s super easy to use. It is a great general-purpose 16-bit converter. The ADS1115 chip is fairly small so it comes on a breakout board with ferrites to keep the AVDD and AGND quiet. Interfacing is done via I2C. The address can be changed to one of four options so you can have up to 4 ADS1115 connections on a single 2-wire I2C bus for 16 single-end inputs. Input range programmed control, 6 types input ranges: -0.256V +0.256V -0.512V - +0.512V -1.024V - + 1.024V -2.048V + 2.048V -4.096V +4.096 V -6.144V - + 6.144V Applications: Portable instrumentation Consumer goods Battery monitoring Temperature measurement Factory automation and process controls Package Includes: 1 x 16 Bit I2C 4 Channel ADS1115 Module Specifications: ADC Bit rate 16 Bit Interface type 12C Channels 4 Channel ANO AN1 AN2 AN3 or 2 differential inputs Input voltage 2.0-5.5v Channel input voltage 0-VDD Continuous mode Only 150μA Single-shot mode Auto shut-down Programmable data rate 8sps-860sps Dimensions 18mm*28mm Weight 5g

16 Channel 12V Relay Module Board This is a 12V 16 Channel Relay Module with Light Coupling LM2576 Power Supply, Be able to control various appliances and other equipment with a large current. It can be controlled directly by a Microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, TTL logic). This is a 12V 16-Channel Relay interface board and each one of the individual relays needs 15-20mA Driver Current. The board features an indication LED for Relay output status and the standard interface that can be controlled directly by many widely used microcontrollers like Arduino etc. The 12V electromechanical relay module with an AC contact capacity of 250V which also include light coupling protection(optocoupler) for isolation of control circuitry. The plate load power module doesn’t need an external power supply. It supports all SCM drives. The LM2596S buck chip in this relay module shows a slight fever which is a normal phenomenon as relays, long working hours have normal fever characteristics. 4 relay load power to give leave some margin, should avoid high-power (about 2000W) and long working environment, there will be some impact on the life of the product. Read our blog explaining What are Relays - Working, Applications & Types Applications: Widely used for all MCU control Industrial sector PLC control Smart home control. Package Includes: 1 x 12V 16CH Relay Board Specifications Operating Voltage  12V Number of Channels   16  Dimensions  11 x 9 x 3cms  Weight  5 grams

1CH 5v Relay Board High/Low Level Trigger with Optocoupler  The 5V Single-Channel Relay Module high level or low level trigger relay is a great little tool for anyone working with Arduino, 8051, AVR, PIC, DSP, or ARM microcontrollers. This module lets you control high-power devices with either a high or low-level signal. It can handle up to 15A at 125V AC or 10A at 250V AC. Plus, this microcontroller relay module is small (50 x 25 x 20 mm) and lightweight (16g), so this High-Voltage relay module fits easily into your projects. Think about how easy it will be to control high-voltage devices with just a simple signal from your microcontroller. This module is perfect for hobbyists and professionals who want to make their projects safer and more efficient. Whether you’re working on home automation, robotics, or any other project, our 5V relay module for Arduino and other microcontrollers is a perfect fit. Single-channel 12 volt relay connections are Connect VCC to the 12-volt power supply The control signal is used to control the relay. If the signal will be HIGH (5V) the relay will be switched to NO(Normally Open) and if the signal is LOW (0V) the relay will be switched to Normally Connected (NC) If the control signal is high the led will glow and Vice- versa. This is a 12V 1-Channel Relay interface board that can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, 8051, and so on. Key

2 CH 12V Relay Board This 2 Road/Channel Relay Module (with light coupling) 12V module meets the safety standard as control areas and load areas have the isolation groove. It is important that the microcontroller share ground with the relay board along with other control signals else it will not able to control the relay.  Very useful project for applications like Micro-Controller based projects, Remote controllers, Lamp on Off, and any circuits which required isolated high current and high voltage switching by applying any TTL or CMOS level voltage.  read more : What is Relay? - Working, Applications & Types

2 Channel Logic Level Converter (I2C, UART, 5V-3.3V) The 2 Channel Logic Level Converter is a small device that safely steps down 5V signals to 3.3V and steps up 3.3V to 5V. This level converter also works with 2.8V and 1.8V devices. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side. Two inputs and two outputs are provided for each side. This logic level converter is compatible with Arduino, Raspberry Pi and STM32. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side. The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the HV' pin, low voltage (3.3V for example) to LV', and ground from the system to the GND' pin.  Application:  TTL Logic Level Converter Bidirectional Logic Level Conversion Package Includes: 1 x 2 Channel Logic Level Converter Specifications: High Voltage 5V Low Voltage 3.3V No. of Channels 2 Dimensions 15 x 15 x 2mm Weight 2g

2 Channel 5V Relay Module with Optocoupler This is a 2-channel 5V relay module 10A. It can be used to control various appliances and other equipment with a large current. This 5V 2 channel Relay interface board can be controlled directly with 3.3V or 5V logic signals from a microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).   Also check SLA-05VDC-SL-A 4Pin 30A Power Relay  Also, check 12V 2 channel relay board sold by Iotcart. The board has two channels and can be used for various applications. It has a working voltage of 12V. Key

24V Relay Cube  This is 24V Relay Cube. This sugar cube relay has an operating voltage of 24V and has a max current capacity of 10A. This makes it most suitable for use in microcontroller-based devices. It is an SPDT Relay. It has 3 output connection terminals, NO, NC and COM. APPLICATIONS: Control Solenoids Motors Bulbs and Lamp Home Automation Projects Freewheeling diode to protect your microcontroller. Package includes: 1 x 24V Relay Cube Specifications: Voltage 24V DC NC Contact Rating 10A @ 125V AC / 30V DC NO Contact Rating 10A @ 250V AC Number Of Pins 5 Current 10A Weight 10g

3 Channel Digital Subwoofer Amplifier Board The 3 channel digital subwoofer amplifier board runs on two high-quality TPA3116D2 digital amplifier chips. It is powered at a DC supply voltage of 12-24V. The subwoofer amplifier board has very sound quality with great amplifying power. This amplifier board has 3 channels out of which there are two 50W channels and one 100W channel that works with high efficiency and produces low heat. Users can simply connect the power supply and loudspeaker box in order to enjoy pure digital music.   Disclaimer: Please note that this 3-Channel Digital Subwoofer Amplifier Board uses a clone IC designed to offer similar functionality to TPA3116D2 digital amplifier chips. This product has been tested to ensure comparable performance and quality for compatible applications. Key

4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter If you've ever tried to connect a 3.3V device to a 5v system, you know what a challenge it can be. The bi-directional logic level converter is a small device that safely steps down 5v signals to 3.3V and steps up 3.3V to 5v at the same time. This level converter also works with 2.8V and 1.8V devices. What separates this logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side. The level converter is very easy to use. The board needs to be powered from the two voltage sources (high voltage and low voltage) that your system is using. High voltage (5v for example) to the 'hv' pin, low voltage (3.3V for example) to 'lv', and ground from the system to the 'gnd' pin logic level shifter bi-directional with 4 channels between high logic and low logic small module with 1.3Cm x 1.5Cm with 2 rows of 6 pin compatible with a breadboard, can be directly used in breadboard usage: for example, high voltage is 5v, low voltage is 3.3V hv connect with 5v power supply lv connect with 3.3V power supply and connect the power negative pole lvx input/output 3.3V TTL hvx input/output 5v ttl bi-directional transform between lvx and tvx

4 Channel 12V Relay Board This 4-channel 12 V relay module is a low pull, high release relay module and features energization status indicator light, release status led is off. By default, this is a 5V relay module and uses jd-vcc for the relay power and is compliant with international safety standards, control, and load areas isolation trenches. The 4 channel relay module can be used to control various appliances and other types of equipment with large currents. The maximum output of the relay module is AC250V 10A and DC5V 10A. The four-channel can be used to switch multiple loads at the same time since there are four relays on the same module. This is useful in creating a central hub from where multiple remote loads can be powered. It is useful for tasks like home automation where the module can be placed in the main switchboard and can be connected to loads in other parts of the house and can be controlled from a central location using a microcontroller. Note:  If either of the relays does not turn on: The contacts might be welded due to overcurrent/arcing. Shaking the module firmly might help unstick the contacts The driver circuitry might have been damaged due to overvoltage. Input polarity might be incorrect. Jumper might not have been moved to the correct position  Applications Switching mains loads Home automation Battery backup High current load switching read our blog explaining the relay applications, provides comprehensive information about relays, their working principles, construction, and various types. Package Includes: 1 x 4 channel 12 V Relay Specifications: Number of Channels  4 Operating Voltage  12V MAx Output  AC250V 10A and DC5V 10A Dimensions  5 x 3 x 1cms  Weight  5 grams