- Raspberry Pi
- Mini Computer/ PC
- 3D Printer
- Arduino Shield
- Robotics Parts
- Home Automation
- Industrial Shield
- Industrial Component
- Motor Driver
- Communication Module
- Robot Platform Chassis
- Power Adapter
- PLC Cable
- Tools & Accessories
- Thermal Printer
- Solar Panel
- Battery & Charger
Arduino UNO in Bangladesh The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller.
AC Light Dimmer Module, 1 Channel, 3.3V/5V logic, AC 50/60hz, 220V/110V
The AC Dimmer is designed to control the alternating current voltage, which can transfer current up to 600V/16А.
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The AC Dimmer is designed to control the alternating current voltage, which can transfer current up to 600V/16А. In most cases, Dimmer is used to turn power ON/OFF for lamps or heating elements, it can also be used in fans, pumps, air cleaners, e.t.c.
Lately, Dimmer has become an often used decision for the smart home systems. For example, when you need to smoothly change the light brightness. The lamp is slowly turning ON or OFF, creating a comfortable atmosphere. Dimmer works most effective with filament lamps. It’s less stable with low brightness dimmable LED lamps, but with moderate and high brightness it will perform a solid job. Note that luminescent lamps (gas discharge lamps) do not support dimming.
Power part of dimmer is isolated from the control part, to exclude the possibility of high current disruption to a microcontroller.
The logical level is tolerant to 5V and 3.3V, therefore it can be connected to the microcontroller with 5V and 3.3V level logic.
In Arduino, dimmer is controlled with RBDdimmer.h library, which uses external interrupts and process time interrupts. It simplifies the code writing and gives more processing time for main code. Which is why you can control multiple Dimmers from one microcontroller.
You can download RBDDimmer.h library and a few examples in «Documents» or on GitHub. We are constantly updating our library, so we recommend to check for the website updates or subscribe to our newsletter.
Dimmer is connected to Arduino controllers via two digital pins. First (Zero) to control the passing of Phase Null of AC, which is used to initiate the interrupt signal. Second (DIM/PSM) to control (dim) current.
Note that Zero requires connection to designated microcontroller pins (which are different depending on the model of Uno, Nano, Leonardo, Mega), since it tied to microcontroller interrupts.
Dimming can be achieved by Pulse Skip Modulation:
- Method 1 — One or more cycles (sine wave signal) are transferred to the load, while following one or several cycles are blocked.
- Method 2 — Partial transferrence of each sine wave to the load.
- Method 3 — Generation of modulated full sine signal of different frequency up to few hundred hertz. This method requires specialized powerfull AC generators with different modulation.
Methods 1 and 2 are the easiest to execute with the help of a Dimmer and programm code: in both cases, there is a need of circuit that detects the zero crossing and can control a triac.
What's on Board Raspberry Pi GPIO interface : for connecting Raspberry Pi USB TO UART : control the Pi through serial terminal AD/DA IO interface : screw terminal 1-WIRE interface : for connecting 1-WIRE devices like DS18B20 Sensor interface : for connecting various sensors 0.96inch OLED : SSD1306 driver, 128×64 resolution, SPI interface Buzzer
Description: This Telemetry radio set allows you to link to a flight controller such as the APM or Multiwii AIO via a USB equipped device such as a computer, laptop or tablet supporting a USB connection (OTG). APM /Pixhawk Radio Telemetry Kit 433Mhz 100mW (OTG Cable Included)
Weighing Sensor 24 Bit HX711 Dual-Channel Precision A/D Module Pressure Sensor. This module uses 24 high precision A/D converter chip HX711. It is a specially designed for the high precision electronic scale design, with two analog input channel, the internal integration of 128 times the programmable gain amplifier.
Arduino Bluetooth Module (HC-05) This serial Bluetooth module can work as either master or slave. This module also includes the baseboard, not only the core board, most functions are pre-set, so only the serial port communication is available but it’s easier to use. It can be used also with Arduino or Microcontroller.
Makeblock mBot Ranger 3-in-1 educational robot kit for Age 10+
Description: This is the very popular 2.4GHz XBee module from Digi. These modules take the 802.15.4 stack (the basis for Zigbee) and wrap it into a simple to use serial command set. These modules allow very reliable and simple communication between microcontrollers, computers, systems, really anything with a serial port! Point to point and multi-point...
Long-distance wireless transmission 3 working modes Working frequency range (433.4-473.0MHz, up to 100 communication channels) Built-in MCU, performing communication with external device through serial port
Length: 12.5 inches (Long) Material: Copper Plated.EachPin Spacing: 2.54mm.Color: Colorfulcompatible with 2.54mm mil spacing pin headers.It can be used for PCB project, pc motherboard, etc.Allow you to plug and unplug easily for prototyping.Package Contents: 1 x Jumper Wire You will get only one pcs.
Relay modules suitable for switching of higher voltages and perfect for use with microcontrollers including Arduino, ARM, AVR and PIC. The relays used are rated up to 10A and have NO/NC contacts. Each channel has an LED indicator to show the relay is on.Channels: 2Connects directly to a microcontrollerSwitching Capacity: 10AMaximum Voltage: 250VAC /...
You can use LC Metal detector non-contact metal induction detection module as a metal detector. When it approaches any metal, it makes a sound. This is a module specifically designed to detect metal. The module operates by inducing currents in metal objects and responding when it occurs. A nice onboard buzzer signals when it detects something and an...
Type: Microwave SensorChip: HB100Frequency: 10.525GHzVoltage: DC 5V±0.25VCurrent: 40mASize: 38 x 45 x 7 mm (L x W x H)Application: Automatic door startup, Car, House intrusion alarm, Collision warningTraffic monitoringNote:Please pay attention to the Voltage/Current/Power of your own devices.To ensure product safety, check whether this item is compliant...
Brand: SparkFun Electronics
Description: Do you make time to talk to your Arduino? Maybe you should! The Easy VR Shield 3.0 is a voice recognition shield for Arduino boards integrating an EasyVR module. It includes all of the features of the EasyVR module in a shield form factor that simplifies connection to the Arduino main board and PC.
Brand: SparkFun Electronics
Description: The Intel® Edison is an ultra small computing platform that will change the way you look at embedded electronics. Each Edison is packed with a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single board computer.
RS485 USB-485 Converter Adapter Support Win7 XP Vista Linux Mac OS