5V 8 Channel SSR Module The 5V 8-Channel Solid-State Relay is somewhat similar to that of a mechanical relay & the difference is that there is no moving contact in a Solid-State Relay. Here we make use of a Phototrriac coupler to turn it ON and OFF. It finds its application in AC circuits as a TRIAC has got only limited applications in DC. The 5V 8 Channel SSR relay allows you to control high-voltage AC loads from lower voltage DC control circuitry. Solid-state relays do have several advantages over mechanical relays. One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays. Also, because there are no moving contacts, solid-state relays can be switched much faster and for much longer periods without wearing out. Input Parts : DC+: connected to VCC (Supply power according to relay voltage) DC-: connected to GND IN1: CH1 Signal triggering the end of 1-channel relay module (active at the high level) IN2: CH2 Signal triggering the end of 2-channel relay module (active at the high level) IN3: CH3 Signal triggering the end of 3-channel relay module (active at the high level) IN4: CH4 Signal triggering the end of 4-channel relay module (active at the high level) IN5: CH5 Signal triggering the end of 5-channel relay module (active at the high level) IN6: CH6 Signal triggering the end of 6-channel relay module (active at the high level) IN7: CH7 Signal triggering the end of 7-channel relay module (active at the high level) IN8: CH8 Signal triggering the end of 8-channel relay module (active at the high level) Package Includes: 1 x 5V 8 Channel SSR Module Specifications: Power supply 5V Trigger Voltage (VDC) 5 Switching Voltage (VAC) 240@2A Isolation Phototriac Zero Cross  Yes Dimensions  13 x 6 x 2cms  Weight  75 grams

5V DC Mini Class D Pam8403 USB Power Amplifier Board The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins. The PAM8403 audio amplifier can extend the battery life, which makes it well-suited for portable applications. The board uses the typical circuit design of PAM8403, using MICRO USB power supply (reserved wire power interface), it is easy to use a universal mobile phone charger for its power supply, resistance devices are standardized patch technology, simple and stable. Applications: LCD Monitors / TV Projectors Notebook Computers Portable Speakers Portable DVD Players, Game Machines Cellular Phones/Speaker Phones Also check the PAM8610 Digital Amplifier Board available on Iotcart. It is a 15W per channel stereo Class-D audio amplifier with DC Volume Control. The working mode is Class D (PWM modulation type), and it features a switch function that, when shorted, will close the amplifier. Package Includes: 1 x Pam8403 USB Power Amplifier Board Specifications: Supply Voltage  6.0 V Input Voltage -0.3 to VDD +0.3V Operation Temperature Range -40 to +85 Maximum Junction Temperature  150 Dimension 21x21x2mm Weight 2g

6V Relay Cube This is a 6V Relay Cube. This cube relay has an operating voltage of 6V and has a max current capacity of 10A. This makes it most suitable for use in microcontroller-based devices.  APPLICATIONS: Control Solenoids Motors Bulbs and Lamp Home Automation Projects Freewheeling diode to protect your microcontroller Package includes: 1 x 6V Relay Cube Specifications: Voltage 6V DC NC Contact Rating 10A @ 250V NO Contact Rating 12A @ 125V Number Of Pins 5 Current 10A Weight 10g

8 Channel 5V Relay Board It is an 8 Channel Isolated 5V 10A Relay Module, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It can also control various appliances and other types of equipment with a large current. Relay output maximum contact is AC250V 10A and DC 5V 10A. One can connect a microcontroller with a standard interface directly to it. Red working status indicator lights are conducive to safe use. It has a wide range of applications such as all MCU control, industrial sector, PLC control, smart home control. Also, read our blog on What is a Relay detailing how it works, relay contact types, and different types of relays and their application. Applications: MCU control Industrial sector PLC control Smart home control Package Includes: 1 x 8 Channel 5V Relay Board Specifications Number of Channels  x 8 Operating Voltage  5V Compatibility  Arduino, AVR, PIC, ARM, PLC Dimensions  140mm X 55mm Weight  15 grams

8 Ohm 0.5W Speaker An 8 ohm 0.5 watt speaker is an electronic component that converts electrical signals into sound waves. It is typically used in small electronic devices, such as cell phones, portable speakers, and handheld radios, where space is limited and low power consumption is important. The resistance of a speaker, measured in ohms, determines its electrical characteristics and how it interacts with the amplifier or other electronic devices it is connected to. An 8 ohm speaker has a resistance of 8 ohms, which is a moderate impedance level that is suitable for use with a wide range of amplifiers. The power rating of a speaker, measured in watts, determines the maximum amount of power that the speaker can handle without being damaged. A 0.5 watt speaker has a relatively low power rating, which means that it is suitable for use with low-power amplifiers or in applications where high volume is not required. Speakers are used in a wide variety of electronic devices, including cell phones, portable speakers, handheld radios, home theater systems, and computer speakers. They are essential components of these devices, as they allow the user to hear the audio output of the device. Package Includes: 1 x 8 Ohm 0.5W Speaker Specifications: Resistance  8 Ohm Radius  3.3cms  Height  2.5cms  Weight  80grams Output power 0.5 W

8-CH 12V ULN2003 Based Relay Board The 8-CH 12V Relay can control any device just like a switch contact. Its contact is isolated from the driven circuit.

9V Relay Cube This is a 9V Relay Cube. This cube relay has an operating voltage of 9V and has a max current capacity of 10A. This makes it most suitable for use in microcontroller-based devices. It is an SPDT Relay. APPLICATIONS: Control Solenoids Can be used with Motors Can be used in switching Bulbs and Lamp Home Automation Projects Freewheeling diode to protect your microcontroller Also check 5V 10A PCB Mount Sugar Cube Relay with SPDT configuration. The relay has an operating voltage of 5V DC, with an NC (Normally Closed) Contact Rating of 7A at 250V and an NO (Normally Open) Contact Rating of 12A at 120V. The maximum current capacity of this 5V relay cube is 7A Package includes: 1 x 9V Relay Cube  Specifications: Voltage 9V DC NC Contact Rating 10A @ 125V AC / 30V DC NO Contact Rating 10A @ 250V AC Number Of Pins 5 Current 10A Weight 10g

AT24C256 I2C EEPROM Memory Module All pins leads out and be marked, the address input and the write-protect pin direct jumper settings on-board pull-up resistor for I2C communications required Onboard 8P-chip carrier, can support AT24C256 series chips Pin power supply, on-board power indicator

CH375B U Disk Read Write Module The CH375B U Disk Read Write Module is fully compatible with CH372, CH375. The CH375 firmware has a built in dedicated protocol processing Mass-Storage and can be directly used as the basic unit of reading and writing in sectors USB storage devices. The CH375 dis read module integrated with a 8-bit data bus and read, write, chip and provides  serial communication via serial input, serial output, and interrupt output monolithic/DSP/MCU/MPU connected. With the help of 2 x 8 connectors it can be easily mounted on a MCU.

CH376 USB Host Interface The "CH376S USB read/write module" has a CH376S chip onboard which does most of the hard work for you. All you have to do is send the module some commands from the Arduino and the CH376S chip will do the rest. CH376 supports three communication interfaces: 8-bit parallel, SPI interface or asynchronism serial interface. The USB-DEVICE Mode of CH376 is totally compatible with CH372, the USB-HOST Mode of CH375 is basically compatible with CH375. Also check the CH375B U Disk Read Write Module, a USB Reader Module available on Iotcart. The module facilitates serial communication via serial input, serial output, and interrupt output for monolithic/DSP/MCU/MPU connections. Package Includes: 1 x CH376 USB Host Interface Module Flash Disk Drive RW Module Features of CH376 USB Host Interface Module  Chip CH376 Module  USB Host Interface Module Compatibility CH372 and CH375 Dimensions  4 x 2 x 0.5cms Weight 5 grams