Generic3

You can change the communication way via the jumper cap on the shield. If all the three jumpers are connected to APC, the shield will realize the XBEE Bluetooth communication. If all jumpers are connected to 485, realize the RS485 communication function.

Onboard also comes with a reset button, a D13 indicator, and some common communication pins of 2.54mm pin pitch, such as serial port, IIC, and SPI communication pins.

Besides, it also has two 2pin terminal blocks. One is VIN GND terminal block, used to supply the external power for the UNO R3 control board, with an input voltage of DC 7-12V. The other is the Servo_PWR terminal block, used for VCC voltage input/output. If not connecting the external voltage, supply 5V for the shield; if connecting the external voltage, VCC voltage is actually the external input voltage.

• Compatible with Arduino UNO R3.
• Comes with 14 digital input/output pins.
• Comes with 6 analog IO pins
• Onboard comes with a digital port power terminal block
• Comes with an external power input terminal block and a input contact pin ( power on the control board with DC 7-12V)
• Comes with an RS485 interface.
• Comes with a reset button
• Comes with a D13 indicator
• Comes with a XBEE Bluetooth interface
• Can connect three jumper caps (APC and 485) to switch the XBEE Bluetooth communication or RS485 communication.
• Comes with I2C, serial port and SPI communication pins
• Onboard comes with a DC 3.3V output pin
• Dimensions: 58.5mm x 57.5mm x 20mm
• Weight: 26.2g

Features and Spec

• Normally Open (NO) type
• Contact rating :125VAC 3A
• Switch type: Push and lock
• Weight: 10g
• Material: Plastic (body and button)
• Button color: Red
• Pitch : 3mm
• Thread diameter: 12mm
• Button diameter: 9mm
• Height: 25mm (body height excluding terminal)

The Grove Base Hat for Raspberry Pi provides a Digital/Analog/I2C/PWM/UART port to meet all your needs. With the help of the build-in MCU, a 12-bit  8 channel ADC is also available for Raspberry Pi. Currently, more than 60 groves have supported the Grove Base Hat for Raspberry Pi.

Compared with Grove Pi , the Grove Base Hat for Raspberry Pi does not use the ATMEGA chip for data conversion, so it runs faster. We provide the Raspberry Pi driver for Grove Base Hat for Raspberry Pi. What's more, Grove Base Hat for Raspberry Pi is much more cost-effective. In other words, we lowered the threshold for using the grove series on the Raspberry Pi. We hope you like it, enjoy :D

• GPIO:
  The same pinout as the raspberry pi.
   
• PWM(pulse-width modulation):
  The Grove PWM Port connects to GPIO/BCM pin12(PWM0) and GPIO/BCM pin13(PWM1), which is the hardware PWM pin of Raspberry Pi, in addition, you can use all the GPIO pins as the soft PWM pin.
   
• UART: 
  The Grove UART port connects to the GPIO14(UART0 TX) and GPIO15(UART0 RX). UART is commonly used on the Pi as a convenient way to control it over the GPIO or access the kernel boot messages from the serial console (enabled by default).It can also be used as a way to interface an Arduino, bootload ATmega, ESP8266, etc with your Pi.
   
• Digital: 
  There are 6 digital Grove sockets in this board, normally the yellow wire(which connect to the top pin of the 4 pins Grove socket as) of Grove cable is the signal wire, so we name the digital Grove port D5/D16/D18/D22/D24/D26.
   
• Analog: 
  As we know, there is no ADC in the Raspberry Pi, so it can not work with analog sensors directly. Now with the help of the build-in MCU STM32, the Grove base HAT can work as an external 12-bit ADC, which means you can use the analog sensor with your Raspberry Pi. Even more pleasing is that not one but four analog Grove sockets are available.
  The analog sensor inputs the analog voltage into the 12-bit ADC. After the ADC converts the analog data to digital data, it input the digital data to the Raspberry Pi through the I2C interface.
   
• I2C: 
  There are three I2C ports available in this board, they all connect to the I2C pin of the raspberry directly. You can consider this part as an I2C hub. Most of Seeed's new grove modules have an I2C interface, you may find those I2C three ports are extremely useful.
   
• SWD: We use the SWD port to burn the firmware to this hat. In addition, you can see 3 GPIO pins in this section, i.e., pin 9/pin 10/pin 11. Those three pins do not use by any Grove port, you are free to use them without worrying about pin conflicts.

Note:

1. All the silkscreen layer pin number beside the Grove port is the BCM pin number. The difference between BCM pins and the physical pins please refer to here.
2. Compared with hardware PWM, the software PWM isn't so accurate and will have trouble at high frequencies.
3. The GPIO/BCM pin18 is also marked as PWM0. The GPIO/BCM 12 and the GPIO/BCM 18 share the same PWM channel, so they can't be set to different rates.
4. The audio jack output also uses PWM 0 and PWM 1, so you can't have an audio output on that socket and use the PWMs at the same time.

• Support Raspberry Pi 2B, 3B, 3B and 4
• build-in MCU
• 12-bit ADC
• Multi-type Grove port
• Operating Voltage: 3.3V
• MCU: STM32/MM32
• ADC: 12-bit 8 channel
• Grove Ports:
  • 6 x Digital
  • 4 x Analog
  • 3 x I2C
  • 1 x PWM
  • 1x UART
• Raspberry pi communication bus: I2C
• I2C Address: 0x04/0x08

• Getting started with HAT-Grove Base for Raspberry Pi, Seeed's wiki page
• Grove Base Hat for Raspberry Pi Eagle Files, zipped file
• Seeed Grove.py Library, zipped file
• STM32F030F4P6TR-Firmware, zipped file
• MM32F031F6P6-Firmware, zipped file
• STM32 Datasheet, pdf file
• MM32F031F6P6_Datasheet.pdf, pdf file
• SCH & PCB drawing, zipped file
• Project example Windows 10 IoT Core Proximity Triggered Camera Applications

With this 210 pcs bipolar transistor pack you will never have to worry about not having the right transistor for your circuit. The transistor kit comes with a 250 pcs bonus resistor assortment kit that includes the most commonly used resistor values, always useful for your electronic circuits.

Having a well-designed transistor kit on hand means no more guesswork and frustration when designing and testing your circuits.
You can depend on it to always find the transistors you need.

Features

• A transistor kit that includes most commonly used transistor types.
• A complete transistors assortment kit, so that you always have the PNP and NPN transistors you need.
• A premium BJT transistor kit that is easy to store and use. It comes with an organizer box.

What's in the box?

• Use high-quality materials to provide the best protection for your Raspberry Pi.
• The aluminum alloy shell is sturdy and durable, and the heat conduction is fast.
• The upper cover of the casing is designed with thermally conductive columns to achieve overall heat dissipation through the thermally conductive adhesive and chip bonding.
• Small size and beautiful appearance.
• The bottom of the shell is made of acrylic material, smooth and beautiful.
• Does not affect WiFi and Bluetooth-compatible signals.
• Note: If you do not want to use the GPIO function, it is recommended to choose the enclosure for right-angle headers.

• Compatible with Raspberry Pi Zero W and Raspberry Pi Zero 2W
• Dimensions: 65mm x 13mm x 30mm

As announced Raspberry Pi 4 model B has upgraded the power input port to USB-C and you will need this cable to power it. Although it is terminated with USB-A 2.0, the power wires (VUSB and GND) have thicker gauge and we have tested it. This cable can delivers up to 2.5A to Raspberry Pi 4 model B.

Supporting USB 2.0 speeds and charging up to 2.5A, this 1 meter cable is perfect for embedded enthusiast that need the flexibility of a good cable and the wonderful feel of a reversible USB-C & USB-A connection. It is perfect if you want to boot up Raspberry Pi 4 Model B from a laptop. Not to forget to connect microcontroller development board like M5Stack.

This cable has the D /D- wires along side large-gauge VBUS/GND wires. Although it is rated for 2A, we've successfully pulled 2.5A@5V with minimal voltage drop.

Features

• Standard USB-A connector
• Reversible USB-C connector
• USB 2.0 standard
• 1 meter cable length

The staple of any USB connection, the USB A to B cable connects any standard host device (computer, hub, or controller) to any standard peripheral (printer, scanner, external drive).

Specifications

1. USB 2.0
2. Connector: USB 2.0-A male > USB 2.0-B male
3. Cable length: 1m
4. For use with Arduino Uno
5. Colour: Black

What's in the box?

1 x USB A to B cable

Note: Not suitable for children under 4 years old!

DIY Wooden Music Box STEM Kit is a music box that works by rotating a metal cylinder that has protruding pins that pluck every prong of a steel comb. The sounds that we hear are actually generated from the vibration of the prongs when the protruding pins make contact.

Let your kids experience the wonder of music creation through this DIY 13th century musical instrument! This DIY kit is simple enough to be built by 6 years old children.

Features

• Do It Yourself Wooden Music Box
• Suitable for age 6 years old and above
• Come with everything needed to assemble the music box
• No power or battery needed
• Learn the mechanism of a wind-up music box
• Music: Carrying You (From "Castle in the Sky" by Studio Ghibli)

• Download the softcopy instruction manual (English) here
• Instruction video here

Features

• Made of stainless steel
• Flexible bending
• Non-breakable
• Precise diameter size, +- 0.01mm

What's in the box?

As micro:bit is gaining traction in this region, powering it is a must :)

If you are new to micro:bit, it is a powerful embedded platform or microcontroller board with easy to get started features, even easier than Arduino. It can be powered by USB micro B when loading the program, or you can use 2 x AA batteries. So here comes the battery holder for this microcontroller.

This is a 2 x AA battery holder for micro:bit with cover and ON/OFF slide switch. Neat!

Note: Battery & micro:bit are not included.

Features

• Terminated with 2-way JST connector, match with battery input on micro:bit
• Holder for 2 x AA batteries
• ON/OFF slide switch
• Comes with cover

What's in the box?

Need batteries? You will find our battery selection here

Two of each of five colour cords: black, green, red, white and yellow
The PVC sleeves on the crocodile clips match the colour of the cables

This bundle is ideal for use with your micro:bit

Specifications

• Material: 304 Stainless Steel.
• Length: 25 mm.
• Jaws Open: 6.2 mm.
• Socket: crocodile clips

What's in the box?

10 x booted crocodile clips

Features:

• Designed for micro:bit V2:
  • micro:bit V2 (single board)
  • micro:bit V2 kit and V2 Kit including batteries
  • micro:bit V2 Club (10 x Go bundle)
• Available in three good-looking colors: (choose your preferred color)
  • Orange
  • Yellow
  • Blue
• The precise hole allows users to use all functions of the micro:bit board.
• Environmentally friendly materials, excellent workmanship.
• Material: Silicone
• Dimension: 56.5 x 10.2 x 37mm

What's in the box?

• Use as a resistor, just two terminals, no polarity
• Small size LDR
• Resistance decreases when it is expose to higher light intensity
• Normally use with another Resistor as voltage divider

• SK40C tutorial page, or project 9.
• About Photo resistors

• Material: Polyolefin
• Internal diameter: 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm
• Shrinkage Ratio: 2:1 (Max. shrink to 1 / 2 of its supplied diameter )
• Length: 30mm, 65mm, 90mm
• Minimum starting Shrinkage Temp: +70℃
• Minimum full Shrinkage Temp: +125℃
• Tensile strength: 10.4 Mpa
• Dielectric strength: 15kV / mm
• Cutting method: Scissors or sharp knife
• Flammability: Flame retardant
• Five Color in total: Yellow, White, Black, Green, Red
• Box size: Approx. 17.2x9.8x2.2cm/ 6.77x3.86x0.87''

• A set assortment of 140 pcs of Polyolefin heat shrink tubing.
• Come with box, easy to store or use, may also be reuse.
• 2:1 shrink ratio and a 600V pressure-bearing rating.
• Handy item for the Technician or Hobbyist work bench, car or van.

• Extended up to 1000mm
• Folded to 500mm
• Quick release plate with 1/4" screw
• Geared elevator
• 3-section aluminum legs with braces
• Carrying case included

This portable camera stand and phone holder is the perfect companion for your creative vision projects. Whether you need to stabilize your smartphone to capture stunning visuals or mount a Raspberry Pi camera for your DIY projects, this camera stand has you covered.

The Extendable Camera Stand features a standard camera mounting screw, ensuring compatibility with a wide range of camera and phone holders, including the Raspberry Pi HQ cams and our cam platforms.

With its extendable height ranging from 15 to 20 cm, you can easily adjust the stand to suit your shooting needs. Additionally, the 2-axis configuration allows for precise positioning and stable support, giving you the freedom to explore different angles and perspectives.

Crafted with durability and functionality in mind, the Extendable Camera Stand is made from aluminium alloy materials and is designed to enhance your photography and videography experience. Whether you're a budding content creator, a tech enthusiast, or a DIY hobbyist, this camera stand is a must-have tool for capturing high-quality images and videos effortlessly.

Features

• Standard Camera Mounting Screw
• 2-Axis mounting configuration
• Extendable Leg Height:
  • 15cm (minimum)
  • 20cm (maximum)
• Materials: Aluminium Alloy
• Max Load: 300g

What's in the box?

1 x Extendable Camera Stand
1 x Phone Holder

Please note: product colours may differ

This is an easy assemble pneumatic connector/coupler kit for the 3D printer PTFE tube. This kit includes PC4-01 and KJH04-M6 connectors with buckle clips. These parts will fit any hot end and extruder that uses a Bowden tube for 1.75 mm filaments. It passes through Bowden fitting. Pneumatic connectors give you a quick fitting and secure connection between the PTFE tube and hot end at one end, and extruder at the other end.

The pneumatic push-in fitting (push to connect fitting) male straight is designed to connect 4mm O.D tubing to R, PT, BPST 1/8 female threaded port in an inline configuration. 4mm O.D tubing to R, PT, BPST 1/8 male straight connector push in fitting features an external hexagon nickel-plated brass body. Internal hexagon on straight adapter allows assembly in confined spaces.



Features

• Material: Aluminum alloy
• High temperature resistant
• Easy assemble, simple push-in design for connecting to the tube and provide a secure connection with no extra sealing required
• The direction of the tube can be changed freely after installation
• Inlet size: 4mm (PTFE  4mmx2)

Compatible with the following models:

• Ender-3 V2
• Ender-5 Pro
• CR-30
• Ender-5 Plus
• Ender-6
• Ender-2 Pro
• Ender-3
• Ender-3 Pro
• CR-10 Max
• CR-10S Pro V2
• Ender-3 Max

Dimensions

KJH04-M6 PTFE Tube Push Pneumatic Connector


PC4-01 PTFE Tube Push Pneumatic Connector

What's in the box?

1 x KJH04-M6 PTFE Tube Push Pneumatic Connector
1 x PC4-01 PTFE Tube Push Pneumatic Connector

Note: The silicone rubber tube is NOT food-grade, it is NOT MEANT to be used for food processes, or animal care applications.

This is Micro Submersible Water Pump DC 3V-5V, which can be easily integrated into your water system project. The water pump works using the water suction method which drains the water through its inlet and released it through the outlet. You can use the water pump as an exhaust system for your aquarium and controlled water flow fountain.
 
Application

• Controlled fountain water flow
• Controlled Garden watering systems

 
Features

• Input Voltage: DC 3V-5V 
• Flow Rate: 1.2-1.6 L/min
• Operation Temperature: 80 Deg.C
• Operating Current: 0.1-0.2A
• Suction Distance: 0.8 meter (Max)
• Outside diameter of water outlet: 7.5mm 
• Inside diameter of water outlet: 5.0 mm 
• Diameter of water Inlet : 5.0 mm
• Wire Length: 200 mm
• Rubber tube length: 1 meter
• Size: 45 x 30 x 25 mm
• Weight: 30g

What's in the box?

1 x Micro Submersible Water Pump DC 3V-5V
1 x 1m silicone rubber tube (NOT Food-Grade)

You might need more hose for your pump

Resources

How to use

1. Firstly, simply connect the red wire (+) and black wire (-) to a 3V or 5V DC supply.
2. Next, make sure the connection is right (+) wire to (+) terminal and (-) wire to (-) terminal.
3. Submerge the water pump into the water according to your application preferences.
4. When the supply is on, water will flow into the inlet of the pump and flow out through the outlet.  

This project kit comes with the new Maker Soil Moisture Sensor.

A capacitive moisture sensor which measures the soil moisture level by changing the probe capacitance and does not erode the sensor probe easily.

The Lesson Guide is written in simple language and comes with a step-by-step guide to make an auto plant watering system.

Click here to download PDF English Version

Lesson 1 : Hello!

• Introduction to micro:bit and MakeCode.

Lesson 2 : What’s the Soil Moisture Level?

• Display soil moisture level through micro:bit by using Maker Soil Moisture Sensor.

Lesson 3 : Dry? Moist? Or Wet?

• Monitor the soil moisture level and differentiate it between dry, moist and wet.

Lesson 4 : Water the Plant

• Turn on the water pump to water the plant when the soil is dry.

Lesson 5 : Servo Motor, Direct the Pipe!

• Control the direction of the water pipe by using a servo motor to water the plant thoroughly.

Additional Activities: Visualize Soil Moisture Level, Music On

• Plot a bar graph to show the soil moisture level and make the auto plant watering system to play melodies and sound notifications.