DIY Alarm using Home Assistant, Konnected, and Sonoff RF Bridge

TB6600 Stepper Motor Driver

Bipolar Stepper Motor Project 1: How to Make A Terrifying Halloween Gadget

This is a simple but fun application for Halloween. All you need is a mask, a stepper motor, a micro-controller, a motor driver, a MP3 module and some wires as well as batteries. 

Hardware components:

DFRduino UNO R3 – Arduino Compatible

TMC260 Stepper Motor Driver Shield For Arduino

Bipolar Stepper Motor with Planet Gear Box (18kg.cm)

DFPlayer – A Mini MP3 Player For Arduino

Gravity: Digital PIR (Motion) Sensor For Arduino

• Printer
• 3D Printer
• CNC
• Robotics
• Linear Actuators

• Model No: 42BYGH40-18-22A-C5.18
• Step Angle (degrees) :1.8
• 2 Phase
• Voltage: 3.4V
• Current: 1.0A
• Resistance: 1.7±10% Ohm/Phase
• Inductance: 4.3±20% mH/Phase
• Holding Torque: 3600 g.cm
• Detent Torque: 400 g.cm
• Insulation Class: B
• Life: 6000 hours
• Gear Ratio: 5.18:1
• Hold Torque with Gearbox: 18kg·cm (176N·cm) (200rpm)
• Dimension: 42×42×40mm(1.65×1.65×1.57″)
• Mounting: 4 x M3

• Mechanic Datasheet

• Stepper Motor with Planet Gear Box ×1

• Be a toy or present for your children;
• An easier way to learn Arduino;
• Be a good tool of education for your children ;
• Be a good way of education on your class
• An amazing secondary development platform for geekers,hackers

• Completely Arduino-compatible, the controller use  the Arduino Leonardo
• Low cost, but much to play;
• No assembly required;
• A lot example codes for test;(Some advanced concepts may not offered,but you may find it in sparki community)
• Wireless control through bluetooth;
• And So many sensors:
• 1x Ultrasonic distance sensor (get distance from Sparki to walls/objects)
• 1x 3-Axis Accelerometer (pick-up detection, fall detection, hill climbing)
• 1x 3-Axis Magnetometer (sense the magnetic field around Sparki, coordinate with accelerometer to detect compass heading)
• 3x Light-sensing phototransistors (light following, darkness seeking)
• 5x Line-following and edge detection sensors (mazes, line follow, sumo)
• 1x 128×64 Graphic LCD
• 1x RGB LED (RGB = generate any color!)
• 1x Buzzer (beeping, booping, and musical tones!)
• 1x IR Transmitter (like your TV remote control)
• 1x IR Receiver (like your TV)
• 1x IR Remote control (lots of buttons to control Sparki with)
• 1x TTL Serial port for expansion (talk to an Arduino/Raspberry Pi)
• 1x Port for Bluetooth Serial Module (not in all rewards)
• Powered by 4xAA batteries (rechargeable or alkaline)
• 2x Geared stepper motors (precise, measured movement down to millimeters/ sub-degrees)
• Marker holder for drawing

• Github of Sparki
• Getting Started with Sparki
• Sparki Forum
• Sparki Wall-avoidance Tutorails

• sparki (assembled) x1 
• bluetooth module x1
• IR Remote x1
• Usb Cable x1

News: Undergraduate students at the Utah State University (USU) have successfully launched the first Pi-powered satellite into orbit. The GASPACS CubeSat, which was sponsored by NASA,
features a Raspberry Pi Zero computer, a second-gen Pi Camera Module, and a DFRobot Beetle microcontroller to facilitate basic tasks at a low price. Read more.

Beetle is fully compatible with the Arduino Leonardo board. It derives its core notion
from minimalism without compromising functionality.

It comes with Atmel ATmega32U4 (datasheet)
@16MHz clock time and has expanded amounts of interfaces: 10 digital pins, 5 analog pins, and 4 pwn pins. To further make it user-friendly, it is compatible with Micro
USB so that direct programming and testing is no longer a headache. Select “Arduino Leonardo (tools – board – Arduino Leonardo in Arduino IDE), the ATmega32U4 comes pre burned with a bootloader that allows you to upload any new code that is applicable to Arduino Leonardo.

As the DFRobot smallest board compatible with Arduino Leonardo, it enjoys similar powerful functionalities. Beetle aims to solve problems of the low-cost controller, ease-of-using properly, and to provide a low-cost solution for disposable projects, such as DIY projects, workshops, gift projects, E-Textiles, and educational. For students and makers who can not afford too much on hardware purchasing, Beetle can be a great solution for them.

• 20mm X 22mm compact size
• Direct downloading and testing via Micro USB
• V-shaped large-size gold-plated IO ports make it convenient for the user to twist wires upon, and can also be directly sewn on clothes with conductive thread.
• Two honeycomb shape gold-plated power interface
• Magic light blue soft BLINK indicator

• Microcontroller: ATmega32u4
• Clock Speed: 16 MHz
• Operating Voltage: 5V DC
• Digital I/O Pins: 10 
• PWM Channels: 4 
• Analog Input Channels: 5 
• UART: 1 
• I2C: 1 
• Micro USB: 1 
• Power Ports: 2 
• Flash Memory:  32 KB of which 4KB used by bootloader
• SRAM:  2.5 KB
• EEPROM:  1 KB
• Size: 20mm*22mm*3.8mm

• Wiki
• Schematic
• Review by One Mans Anthology
• Adafruit’s Trinket vs DFRobot’s Beetle – Review and Comparision (Video)
• Beetle: Minimize Your Arduino Projects (Instructables)

• Beetle x1

Bluno combines the user-friendly nature of Arduino with the wireless prowess of Bluetooth 4.0, offering an efficacious and pliable solution for IoT projects. Featuring an ATmega328 microcontroller and an integrated BLE chip, Bluno empowers developers to effortlessly exchange data with Bluetooth devices, without the need for delving into intricate Bluetooth protocols. The board boasts a plethora of I/O interfaces, support for a wide range of sensors and actuators. Compatible with the Arduino IDE, Bluno serves as an exemplary choice for prototyping and testing applications encompassing home automation, environmental monitoring, and automated control.

Compatible with Arduino Programming

Bluno is programmed using the Arduino IDE, rendering it user-friendly for individuals already acquainted with Arduino. This feature allows for instant utilization without the need to acquire new programming tools or adapt to unfamiliar environments. Additionally, its compatibility with Arduino ensures access to a vast array of resources, such as a multitude of Arduino libraries and example code. These resources greatly expedite the development process and alleviate difficulties. Furthermore, Bluno benefits from a solid backing of community support. The Arduino community thrives as an active and open-source network comprising countless developers and enthusiasts. This vibrant community makes it effortless to seek assistance, exchange knowledge, and share experiences.

Supports Arduino Shields and Various Sensors

Bluno follows the standard Arduino pin layout, encompassing interfaces for digital I/O, analog input, PWM, I2C, SPI, and UART. Consequently, Bluno can seamlessly accommodate a wide range of Arduino-compatible shields. This advantageous feature enables the utilization of existing Arduino shields and sensors without necessitating additional hardware purchases for compatibility with Bluno. As a result, development and prototyping costs are effectively reduced.

Multiple Wireless Capabilities

Bluno supports Bluetooth data transmission, enabling wireless communication between a smartphone or another Bluno device. This is achieved through straightforward “Serial.write” and “Serial.read” commands for sending and receiving Bluetooth data. Moreover, Bluno provides the added convenience of wireless programming. Once two devices are connected, you can effortlessly upload code from one Bluno to another one. This streamlined process simplifies updates and enhances overall flexibility.

DFRobot Bluno series is an Arduino-compatible Bluetooth 4.0 (BLE) hardware solution designed by makers, and for makers. All Bluno products are Bluetooth 4.0 ready, and enjoy features such as wireless programming, smart App controlling, long communication range, and plentiful periphery modules.

Introduction to Bluno Series

• On-board BLE chip: TI CC2540
• Wireless Programming via BLE
• Support Bluetooth HID
• Support AT command to config the BLE
• Transparent communication through Serial
• Upgrade BLE firmware easily
• DC Supply: USB Powered or External 7V~12V DC
• Microcontroller: Atmega328
• Bootloader: Arduino Uno ( disconnect any BLE device before uploading a new sketch )
• Compatible with the Arduino Uno pin mapping
• Size: 60mm * 53mm(2.36″*2.08″)
• Weight: 30g

Introduction: KnowFlow is the name of this water quality monitoring device, based on “Arduino Uno”. It can automatically monitor 5 parameters of water: pH, Temperature, Dissolved Oxygen, Electronic Conductivity, ORP.

Project 2. How to Make an Automatic Christmas Tree

Introduction: With all the lights and decorations that people use at Christmas, power is left on all the time and electricity bills skyrocket. I made this motion detecting Christmas tree light setup that only turns on when people are nearby.

Project 3. How to Make a Santa Alarm

Introduction: Using the new RGB color sensor available at DFRobot, I rigged up a simple proximity alarm. I can use this to warn myself if someone is in a close range of my Christmas tree putting presents under there. The hardware of this project is pretty simple and suitable for beginners.

Project 4. How To Build Your Own MechaGodzilla Armor! 56 Days To Make Wearable Monster Suit Using EVA & Gears!

• DFRobot Microcontroller compatible with Arduino Selection Guide 
• Wiki
• Introduction to Bluno Family
• Schematic

Demo Tutorials

• Bluno Basic Demo
• Bluno Accessory Shield Demo
• Programming the Internet lesson 37: Exploring the DFRobot Bluno

User Review

• Embedded Computing Review by Rei Vilo

Custom Application from User

• Bluno iOS Terminal (developed by Air Vision)
• 3D Printable Bumper for Bluno (by omega368)

• Bluno x1

Version Upgrade:
1.V2 replaces DRV8825 as stepper motor driver, higher micro stepping (1/32)
2.Increase 3.3/5V input signal switch, compatible with 3.3V microcontroller
3.Expand the driver Enable pins, support sleep mode

Motor Drive Expansion Board Selection Guide

Product Name	2x1A DC Motor Shield for Arduino	Micro:bit Driver Expansion Board	Gravity: Dual Bipolar Stepper Motor Shield for Arduino (DRV8825)	Quad DC Motor Driver Shield for Arduino
SKU	DRI0001	DFR0548	DRI0023	DRI0039
Chip	L293B	HR8833	DRV8825	TB6612FNG
Operating voltage	5V DC	/	3.3V/5V	2.7~5.5V
Motor drive voltage	7-12V DC	3.5~5.5V DC	8.2-45VDC	2.5V-13.5V
Maximum drive current	1A each way	1.5A	1.6A	1.2A continuous current (per channel) 2A (continuous pulse) 3.2A (single pulse)
Motor drive using pins	PIN4/5/6/7 (Arduino Controllor)	/	D4，D5，D6 D7，D8，D12	D3,4,5,6,7,8,11,12
Dimension	56x57mm	63 x 58mm	83*55*25mm	52mm * 53mm
Weight (g)	60	64	48	24
Frequently used With	FIT0565/FIT0520/ FIT0450/FIT0492/ N20 Series	FIT0565/FIT0520/ FIT0450/FIT0492/ N20 Series	FIT0278/FIT0503	FIT0565/FIT0520/ FIT0450/FIT0492/ N20 Series
Key Features	With motor indicator	8-way servo interface DC motor x4/stepper motor x2(multiplexed with motor interface)	Full step, 1/2, 1/4, 1/8, 1/16, 1/32 step mode	High-speed drive capability, can drive ordinary 2-phase stepper motor to 5000RPM, and drive quad DC at the same time
Product Name	Gravity: IO Expansion & Motor Driver Shield	Gravity: 2x2A Motor Shield for Arduino Twin	TMC260 Stepper Motor Driver Shield	2x2A DC Motor Shield for Arduino
SKU	DFR0502	DRI0017	DRI0035	DRI0009
Chip	TB6612FNG	L298	TMC260	L298P
Operating voltage	2.7~5.5V	5V	5V	5V
Motor drive voltage	12V (peak value)	4.8 ～ 35V	40V max	6.5~12v(VIN Power Supply),4.8~35V (External Power Source)
Maximum drive current	1.2A continuous current (per channel) 2A (continuous pulse) 3.2A (single pulse)	up to 2A/channel	up to 2A per motor coil	2A
Motor drive using pins	D4 D5 D6 D7	D10,11,12,13	/	Pin 4,5,6,7 are used to drive two DC motor
Dimension	68.5mm×53.3mm	56x57mm		55x55mm
Weight (g)	36	35	35	60
Frequently used With	FIT0565/FIT0520/ FIT0450/FIT0492/ N20 Series	FIT0565/FIT0520/ FIT0450/FIT0492/ N20 Series	FIT0278/FIT0503	FIT0565/FIT0520/ FIT0450/FIT0492/ N20 Series
Key Features	Integrated XBee Slot, XBee, WiFi Bee, Bluetooth Bee,  I2C.	Mirrored version of DRI0009. Drive pins: 10, 11, 12, 13 Not compatible with IO expansion board V7.1. The control port is four, which reduces the overhead of the Arduino digital ports, and easy to program.	Suitable for driving bipolar stepper motors. SPI serial bus control or STEP/DIR signal control. Controllers such as Mega with full port expansion. 256 times microstep subdivision.	Use mirror motor to drive DRI0017 to aviod the conflicts . Support PWM speed control. Support PLL advance speed control

• Input Voltage: 8.2-45 VDC
• Output current: 1.6 A (Limited)
• Working voltage: 3.3/5 V
• Driving pin: D4, D5, D6, D7, D8, D12
• Microstep resolutions: full, 1/2, 1/4, 1, 8, 1/16, 1/32
• Support Dual Bipolar Stepper Motor
• Support XBee interface
• Compatible with the Arduino UNO R3, Leonardo, Mega microcontroller
• Dimension: 83 * 55 * 25 mm/3.26 * 2.16 * 0.98 inches
• Weight: 48 g

• WIKI (Stepper Motor Shield For Arduino)
• DRV8825 datasheet
• Shield Shield Schematic
• DRV8825 Schematic
• Historical version: Stepper Motor Shield for Arduino (A4988)

• SDual Bipolar Stepper Motor Shield for Arduino (DRV8825) x1

• Material:Plastic
• Color:White

• Button Cell Battery Holder x1
• LR44 cell battery x3

If you are worried about the chaotic tangle of wires on a breadboard or intimidated by the trepidation of soldering holes on a perforated board, then you’ve come to the right place. Gravity, a set of electronic module interface specifications formulated by DFRobot, provides the solution you need.
By utilizing the Arduino Gravity IO expansion board in conjunction with Gravity modules, you can effortlessly establish connections with a single cable. Whether analog, digital, or I2C modules, easily identified wiring colors liberate you from the tension that precedes every power-on moment.
There is no need for wire strippers or soldering irons to experience the enchantment of Arduino. Furthermore, it is compatible with both the Arduino UNO R3 and Arduino UNO R4.

Moreover, this Arduino IO expansion shield has a range of features, such as wide voltage input, an Xbee module socket, a UART fast toggle switch, a 3.3V voltage selection jumper, and dedicated power protection for servos. These functionalities elevate the expandability of your Arduino to new heights.

Furthermore, using the Gravity IO expansion board does not imply the obligation to exclusively use Gravity modules. On the Gravity IO expansion board, it remains convenient to employ other non-Gravity modules by easily connecting them using DuPont wires.

Schematic diagram for using the expansion board

If you are using development boards such as ESP32, micro:bit, Raspberry Pi Pico, etc., you can also take a look at the Gravity IO expansion boards designed by DFRobot specifically for these boards.

Arduino MEGA2560:

   – Gravity: IO Sensor Shield For Arduino Mega2560

micro:bit:

   – IO Extender for micro:bit

Raspberry Pi Pico:
Gravity:

  – Expansion Board for Raspberry Pi Pico

FireBeetle 2 ESP32-E:

   – Gravity: IO Shield for FireBeetle 2

• 3.3V/5V operating voltage select
• Switch for wireless communication & programme
• More Easily recognitive interfaces
• Colorful header for illustrating digital or analog pins
• Immersion gold surface

• Input Voltage
• 7-12V, PWR_IN
• 4.8-6V, SERVO_PWR, depending on your servo
• Compatible module voltage: 5V/3.3V
• Support interface: I2C, SPI, Xbee (Xbee pro), Bluetooth, APC220

Project 2. Spectrophotometer Experiment Based on AS7341 Spectral Sensor

Introduction: This project uses DFRobot AS7341 Spectral Sensor to make a simple spectrophotometer,
and carry out an experiment to measure substance concentration in different solutions by collecting data, fitting curve, etc.

Project 3. How to make a Smart Rock-Paper-Scissors Game Robot

Introduction: This project made a smart rock-paper-scissors robot and bring it to campus maker carnival.

Project 4. Build KnowFlow: automatic water monitor

Introduction: KnowFlow is the name of this water quality monitoring device, based on
Arduino Uno.
It can automatically monitor 5 parameters of water: pH, Temperature, Dissolved Oxygen, Electronic Conductivity, ORP.

Project 5. How to Make An Automatic Water Changing System

Introduction: This simple system detects water quality through simulation Gravity: Analog pH Sensor / Meter Kit For Arduino and Gravity: Analog Turbidity Sensor For Arduino,
and supplies and drains water through the submerged pump and solenoid valve.

• Wiki Doc        
• Schematic

• IO Expansion Shield for Arduino V7.1 x1

This is a TT Micro DC Geared Motor with Back Shaft working at 6V with 160rpm. The TT motor series the most popular DC motors for DIY enthusiasts.  It is designed to easily incorporate the DFRobot Encoder. These motors are inexpensive, small, easy to install, and ideally suited for use in a mobile robot. The DFRobot ROMEO microcontroller is able to complete the closed-loop PID making use of the Gravity:TT Motor Encoders Kit.

We recommend this rubber wheel for this motor.

• Operating Voltage Range: 3~7.5V
• Rated Voltage: 6V
• Max. No-load Current(3V): 140 mA
• Max. No-load Current(6V): 170 mA
• No-load Speed(3V): 90 rpm
• No-load Speed(6V): 160 rpm
• Max. Output Torque: 0.8 kgf.cm
• Max. Stall Current: 2.8 A

• Rated Load: 0.2  kgf.cm
• Operating Temperature: -10~+60 ℃
• Storage Temperature: -30~+85 ℃
• Motor Type: 130

• Output Mode: 2 sides
• Gear Ratio: 1:120
• Max. Diameter of Output Axle: 5.4 mm
• Net Weight: 45 g

• 3Dmodel

• Micro DC Geared Motor with Back Shaft   x1