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DFR0508 FireBeetle Covers - DC Motor & Stepper Driver
US$26.25
DFRobot FireBeetle series are low power consumption microcontrollers designed for Internet of Things (IoT) development. FireBeetle Covers-DC Motor & Stepper Driver is a DC motor & Stepper Motor driver designed for FireBeetle Microcontrollers. It can control up to four-channels DC motors / two-phase four-wire stepper motors simultaneously. The motor driver cover integrates a STM8 as its coprocessor, controlling the motor speed and direction. It communicates with Microcontroller via IIC port, supports up 1000Hz refresh rate. The assisted processor STM8 controls motors and set the main control free. It effectively reduces the dependence on MCU pin resources and MCU occupancy. Independant motor control make the multi-motors projects more affordable. Cooperate with DFRobot Arduino Motor Library, it will reduce your development difficulty.
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TEL0122 FireBeetle Covers-LoRa Radio 915MHz
US$31.25
DFRobot FireBeetle series are low power consumption controllers designed for Internet of Things (IoT) development. The FireBeetle series are aiming straight at the point fast and convenient low-power IoT building. There are three categories of FireBeetle series, containing Boards (main control), Covers (expansion boards) and related Accessories.  FireBeetle LoRa 915MHz wireless transmission module adopts a high-performance chip SX127x LoRa 915MHz and with built-in PA (power amplifier) gain, compatible with Aruino. It supports long-range monitor, FSK modulation and the maximum transmission rate is 300K[null bps]. It also supports LoRaTM, the maximum transmission rate is 37.5Kbps. The circuit current is even lower than 0.2uA in the low power mode. It can be widely used in remote home automation detection, health monitoring and wearable device and so on.
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TEL0121 FireBeetle Covers-LoRa Radio 433MHz
US$31.25
DFRobot FireBeetle series are low power consumption controllers designed for Internet of Things (IoT) development. The FireBeetle series are aiming straight at the point fast and convenient low-power IoT building. There are three categories of FireBeetle series, containing Boards (main control), Covers (expansion boards) and related Accessories.  FireBeetle LoRa 433MHz wireless transmission module adopts a high-performance chip SX127x LoRa 433MHz and with built-in PA (power amplifier) gain, compatible with Aruino. It supports long-range monitor, FSK modulation and the maximum transmission rate is 300K[null bps]. It also supports LoRaTM, the maximum transmission rate is 37.5Kbps. The circuit current is even lower than 0.2uA in the low power mode. It can be widely used in remote home automation detection, health monitoring and wearable device and so on.
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DFR0502 Gravity: IO Expansion & Motor Driver Shield
US$24.75
Gravity IO Expansion Shield with Motor Driver is a new product designed for Arduino Boards. It combines IO Expansion Shield and DC Motor Driver Shield, equipped with Gravity sensor interface and TB6612FNG dual motor driver. It also has XBee socket, I2C interface and UART port, makes the connections more convenient.  With TB6612FNG dual channel motor driver IC, the shield can drive 2x1.2A DC motors at the same time. It supports PWM speed control, each channel can output 1.2A continuous current and the peak current can reach to 3.2A. It is compatible with majority micro DC motors in the market. It is a solid choice for small intelligent robot controls, convenient and cost-effective.
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EF03404 Micro:bit Breadboard Adapter
US$9.73
Micro:bit Breadboard Adapter is a breadboard pinboard based on Micro:bit. It can be directly plugged into breadboard. Through this adapter, you can start various DIY creation on Mico:bit Breadboard.
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EF03405 ElecFreaks Micro:bit Breakout Board (Octopus:bit)
US$19.53
We all know the side pin on BBC Micro:bit board can lead to the input signal or generate control signal with special interface. As for pins of 0/1/2/3V/GND, we can use alligator clip to lead signal. But other pins are too close to lead, which is obviously presented on micro:bit board. Usually the voltage of micro:bit is 3.3V while other modules (like LED digital tube module, IIC LCD module, etc.) connected to it require 5V power supply and 5V TTL voltage to work properly. To solve the above problems, we have invented ElecFreaks Micro:bit Breakout Board . ElecFreaks Micro:bit Breakout Board can completely match with BBC Micro:bit pins. Plug our breakout board into BBC Micro:bit, you will find it is much more convenient to lead.
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EF03409 Power:bit For Micro:bit
US$8.39
ELECFREAKS Power:bit is a kind of micro:bit extension board with minimum size. It is powered by two 2025/2032 button batteries and carries a buzzer on the board. Due to its small cute size and abundant electric power, it is very suitable to be applied to micro:bit wearable devices like pedometers, timers , portable music broadcasters and so on.
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EF02052 ELECFREAKS Ring:bit For Micro:bit
US$13.99
ELECFREAKS Ring:bit is a kind of extension board for micro:bit, which can lead out three IO ports: P0, P1, P2. It can connect 3 motors at most. Ring:bit is a simple module based on micro:bit. It can lead out 3 IO connectors, power connectors, ground connectors on the micro:bit board. On this module, we have transformed P0/P1/P2 into general connectors for GVS electric bricks. Among them, we have extended P2 to a GVS connector with multiple usages. There is a slide switch on the board. Slide the switch to "S", then you can connect SR and SL2 (digital signal modules) at the same time. Slide to "P2", you can connect digital module or simulating module but only one of them. This module adopts 3 No. 7 batteries for power supply. It is very simple, easy and practical to use. With this module, you can drive all kinds of GVS modules like servos, line-hunting modules and LED modules.
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CH340G USB to Serial IC Chip
US$1.58
The CH340 is a USB to Serial Bus converter chip. It supports both 5 and 3.3 VDC.
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WEMOS-340G Wemos 32M flash NodeMCU V3 340G ESP8266 Compatible
US$10.93
This is an ESP8266 equipped with 32M of flash memory. It is compatible for NodeMCU board (Lua based ESP8266). The additional memory this unit has allows for bigger projects with complicated and large libraries. It features an onboard USB-TTL Serial converter (CH340G chip) and a Micro-USB female connector. It comes with two sets of 15 pins headers to give you the freedom of choosing whether soldering directly onto the pin holes for a more compact approach.
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PI-EP-0077 ON/OFF IR Module for Raspberry Pi
US$26.25
This is an ON/OFF IR remote control module for Raspberry Pi 2/3 Model B or Pi Zero. It allows you to send power-on and power-off commands to your Raspberry Pi with a click of a button using the included remote control. This is a fancier way of powering the Pi on and off compared to plugging and unplugging the power cord.
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Long Distance DC Signal Transmission Booster
US$9.94
This device is capable of maintaining the voltage signal in a system when transmitting for long distances. As the distance increases, the drop in the signal increases, hence this module should be installed at the end of the signal transmission. It has a good stability and linearity. Current input: 4 - 20 mA / 0 - 20 mA Voltage output: 0-3.3VDC, 0-5VDC, 0-10VDC Adjustable potentiometers for zero and range adjusting Removable jumpers for range selection.
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AC/DC High Precision Small Voltage Signal Amplifier Module
US$13.13
This device uses an AD620 as an amplifier that is capable of amplifying small voltage signal (e.g. µV) AC or DC. By adjusting the on-board potentiometer, the magnification can be adjusted to go as high as up to 1000 times. This module has a low voltage offset, great linearity, and also, an adjustable zero potentiometer to improve its accuracy.
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BB-PAM8403-V Mini Dual-Channel Audio Amplifier
US$5.53
This mini audio amplifier features the PM8403 amplifier chip integrated onboard. It can take signal from a 3.5mm headphone jack and output to two speakers. The audio signal input and output is stereo capable meaning that you get left and right channel that are separate. Use the wheel potentiometer onboard to adjust the volume of the output.
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PI-LCD-84X48 84x48 LCD Display Breakout-Board for Raspberry Pi
US$18.94
This is a 1.6 inch 84x48 pixels LCD matrix module that can be mounted directly on the GPIO pins of the Raspberry Pi Zero/1/2/3 Model B and programmed by it.  Specifications:  1.6 inch, 84 x 48 pixels matrix LCD. ON/OFF switch for backlight. Product Weight: 25 g. Module Dimensions: 23 x 62 x 5 mm (L x W x D).
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