The Whadda WPA505 plexiglass case can be used to secure your Raspberry Pi 4® to the back of a TV or monitor with a VESA mount (10 x 10 cm).
The case consists out of two transparent bottom and top plates and 4 piano black sides. The sides give easy access to the GPIO ports, SD card and USB, HDMI, LAN and power connectors.
Easy access to the GPIO ports, SD card and USB, HDMI, LAN and power connectors
With the Whadda WPA507 keep your Raspberry Pi 4 nice and cool for a better performance thanks to this cooling case.
The case includes heat sinks for the CPU and USB 3.0 controller. Combined with the fan, the maximum temperature stays below 48°C.
The housing consists out of two transparent bottom and top plates and 4 piano black sides. The sides give easy access to the GPIO ports, SD card and USB, HDMI, LAN and power connectors.
includes:
2 x: heat sink with adhesive conductive tape
1 x: fan suitable for Raspberry Pi 4
2 x: transparent top and bottom
4 x: piano black sides
All necesarry screws, nuts and bolts to assemble the case
The Whadda WPA508 project holder allows you to attach the Arduino® UNO and the included breadboard together.
It contains two grooves (one groove size is 88 x 60 mm), which is the just right size to fit a 400 hole breadboard; the other groove is for the Arduino UNO.
The position of the 4 M3 screw holes fits the Arduino® UNO mounting holes.
The Whadda WPB100 ATmega328 UNO DEVELOPMENT BOARD (Arduino® Uno compatible) is a microcontroller board based on the ATmega328.
It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analogue 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; connect it to a computer with a USB cable or power it with an AC to DC adapter or battery to get started.
Microcontroller: ATmega328
Operating voltage: 5 VDC
Input voltage (recommended): 7-12 VDC
Input voltage (limits): 6-20 VDC
Digital I/O pins: 14 (of which 6 provide PWM output)
Analogue input pins: 6
DC current per I/O pin: 40 mA
DC current for 3.3 V pin: 50 mA
Flash memory: 32 kB (ATmega328) of which 0.5 kB used by bootloader
The Whadda WPB102 ATmega328 DEVELOPMENT BOARD (Arduino® Compatible Nano 3.0) is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x) orATmega168 (Arduino Nano 2.x).
It has the same functionality as the Arduino Duemilanove, but in a different package. It's powered with a mini-B USB cable instead of a standard one.
Microcontroller: Atmel ATmega168 or ATmega328
Operating voltage: 5 VDC
Input voltage (recommended): 7-12 VDC
Input voltage (limits): 6-20 VDC
Digital I/O pins: 14 (of which 6 provide PWM output)
Analogue input pins: 8
DC current per I/O pin: 40 mA
Flash memory: 16 kB (ATmega168) or 32 kB (ATmega328)
The Whadda WPI1301 DS1302 trickle-charge timekeeping chip contains a real-time clock/calendar and 31 bytes of static RAM.
It communicates with a microprocessor via a simple serial interface. The real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year.
The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator.
Manages all timekeeping functions: real-time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year
31 x 8 battery-backed general-purpose RAM
Simple serial port interfaces to most microcontrollers: simple 3-wire interface
TTL compatible: VCC = 5 V
Single-byte or multiple-byte (burst mode) data transfer for read or write of clock or RAM data
Low power operation extends battery backup run time: 2.0 V to 5.5 V full operation
The Whadda WPI304 shield will prove useful for data logging with your Arduino. Can be easily assembled and customised for any data logging project.
The SD card interface works with FAT16 and FAT32 formatted cards. The real time clock (RTC) keeps the time going even when the Arduino is unplugged. Prototyping area for soldering connectors, circuitry or sensors.
The Whadda WPI348 RFM69HCW module is an inexpensive and versatile radio module. You can use it to send text or binary data between two or hundreds of modules. It's perfect for building inexpensive short-range wireless networks for home and building automation, sensor networks, automated meter readings, wireless alarm and security systems, industrial monitoring and control, and many more applications.
The RFM69HCW transceiver module operates over a wide frequency range, including the 315, 433, 868 and 915 MHz license-free ISM (Industry Scientific and Medical) frequency bands. All major RF communication parameters are programmable and most can be set dynamically. The RFM69HCW is optimised for low power consumption while offering high RF output power.
The VMA348 RFM69HCW transceiver breakout board brings out all the pins and the antenna connection. Each module comes with headers pre-soldered, a 3.3V voltage regulator and levelshifter that can handle 3-5V DC power and logic so you can use it with 3V or 5V devices. You will need to solder a small piece of wire to create your antenna or you can add a uFL or SMA edge-mount connector and attach an external antenna.
By using the library, the frequency of the board can be set with 61Hz precision to any frequency from 240.0MHz to 960.0MHz.
Compatible with 3.3v or 5v I/O Arduino Boards
SPI interface
Frequency Band: 315, 433, 868 and 915 MHz (programmable)
Suitable for LoRa network applications
Low power consumption
Built-in temperature sensor
Built-in bit synchroniser performing clock recovery
Incoming sync word recognition
Automatic RF Sense and CAD with ultra-fast AFC
Constant RF performance over voltage range of module
168 dB maximum link budget
+20 dBm - 100 mW constant RF output
High sensitivity: down to -120 dBm at 1.2 kbps
High selectivity: 16-tap FIR channel filter
Low current: Rx = 16 mA, 100 nA register retention
Programmable Pout: -18 to +20 dBm in 1 dB step
FSK bit rates up to 300 kb/s
Fully integrated synthesiser with a resolution of 61 Hz
The Whadda WPI354 can control your Arduino projects from anywhere in the world with a free app thanks to the Tuya IoT interface.
Plug the Tuya IoT interface module into your Arduino using the included 4 male wires. Then connect your Arduino with the IoT Tuya cloud by simply installing the Tuyav library, which is compatible with ATmega chipsets (or AVR platforming). This will enable you to connect with the Tuya app over WiFi and lets you control up to 5 outputs.
Directly control digital & analogue output pins on your Arduino
Watch the state of digital & analogue input pins on your Arduino
Add, control and link multiple devices at once
Easily connect with the Tuya cloud thanks to the Tuyav library (compatible with ATmega chipsets)
Includes Tuya cloud access without additional subscription needed
Compatible with the Tuya & Smart Life apps (Android® & iPhone®)
Dimensions (W x H x D): 31.5 x 42.8 x 9.6 mm
Power: 5V DC
Connectioncs: VCC, GND, TX, RX
Wireless frequency: 2.4 GHz (not compatible with 5 GHz frequency)
The Whadda WPI401 is a small and versatile motor and driver set.
This 5V DC stepper motor is controlled by the ULN2003 driver and can be used with any Arduino® or compatible boards via jumper leads. Four-phase LED indicates the status of the stepper motor.
With the Whadda WPI408 you can add a camera to your Raspberry Pi board, but also want night vision to see in the dark, then this module is your solution.
The 2 IR light boards with built-in light sensor can be connected to the central camera module by using the supplied screws.
The IR light will turn on when the built-in sensors detect limited light in the area. Plug-and-play, a tiny size and 5 megapixels to stream in 1080p.
Embedded removable IR-CUT filter, eliminating colour distortion in the daylight
Comes with infrared LED that supports night vision
The Whadda WPM321 1A Lithium battery charging board is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries.
Two pieces are provided in this pack.
Input voltage: 4.5 to 5.5V DC (by on-board USB connector)
Charging current: 1 A adjustable
Charge accuracy: 1.5 %
Full charge voltage: 4.2 V
Charge indicator: green = fully charged, red = charging
The Whadda WPM349 TFMINI time of flight module is a ToF (Time of Flight) LiDAR sensor capable of measuring the distance to an object as close as 30 centimetres and as far as 12 metres. This sensor features unique optical and electrical designs, ensuring stable, precise, high sensitivity and high-speed distance detection.
The sensor comes with an easy to use breadboard friendly cable. The four male wires make it easy to use with Arduino development boards and other platforms with female headers. The package also includes a female to female connector to use with quick prototyping boards.
With the Whadda WPM421 water pump you can create your own plant watering system or build an automatic aquarium refill system by using your Arduino and this small yet powerful water pump.
Working voltage range: 5V DC to 12V DC
Max. load current: 0.35 A at 12V DC
Power consumption: 4.2 W at 12V DC
Max. horizontal flow rate: 240 L/H (63 gal/H )
Max. static lift: 3 m ( 118" )
Noise class: <40 dB
Waterproof class: IP68
Life span: > 30.000 hrs
External diameter of outlet: 8 mm ( 0.31" )
External diameter of inlet: 8 mm ( 0.31" )
Driving mechanism: brushless DC motor
Pump shell material: ABS
Max. working temperature: 60 °C (140 °F)
Conditions of use: can continuously work, submersible or land use (not self-priming)
Dimensions: 51 x 34 x 42.7 mm ( 2 x 1.34 x 16.8" )
The Whadda WPM436 8-channel relay interface board can control various appliances and other equipments with high current. It can be controlled directly by any micro-controller.
Standard interface that can be controlled directly by any microcontroller
Opto-isolated inputs
Indicator LEDs for relay output status
Control input current (in1 to in4): 5 - 25 mA
Control input voltage: 5 - 12V DC
Relay output: 250 VAC 10 A; 30V DC 10 A (non-inductive)
The Whadda WPSE303 package includes a water level sensor and a soil moisture sensor.If the boards have water covering the sensor parts, an analogue value will be available at the "SIG" connection.
The water level sensor can sense up to 4 cm of water. This way, you can track whether or not your aquarium or your pet's water bowl still has enough water in it.
You can use the soil moisture sensor to keep an eye on your plant's soil or the environment of a terrarium for example.
Measures water levels up to 40 mm (1,57")
Includes: water level sensor and soil moisture sensor
The Whadda WPSE309 high sensitivity sound detection module detects sounds between 48 and 66 dB and has an analog as well as a digital output.
The AO or analog output creates a real-time output voltage signal of the microphone, whereas the DO or digital output depends on the sound intensity and the threshold that has been set.
Voltage: 3.3 to 5 VDC
Outputs: one analogue and one digital output
Fixation: 1 mounting screw hole 3 mm / 1.3"
2 indicator LEDs: 1 power indicator and 1 comparator output indicator
Frequency response: 50 Hz - 20 KHz
Impedance: 2.2 K Ohm
Sensitivity: 48 - 66 dB
Operating temperature: -40 to +85°C / -40 to 185° F
The Whadda WPSE311 DHT11 temperature and humidity sensor features a calibrated digital signal output with the temperature and humidity sensor complex.
Its technology ensures the high reliability and excellent long-term stability. A high-performance 8-bit micro-controller is connected.
This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance advantages.
The Whadda WPSE324 DS18B20 Digital Thermometer provides 9 to 12-bit configurable temperature readings which indicate the temperature of the device being monitored.
Unique single wire interface requires only one port pin for communication
Multidrop capability simplifies distributed temperature sensing applications
Requires no external components
Can be powered from data line, power supply range is 3.0 V to 5.5 V
Zero standby power required
Measures temperatures from -55°C to +125°C (Fahrenheit equivalent -67°F to +257°F)
± 0.5°C accuracy from -10°C to +85°C
Thermometer resolution is programmable from 9 to 12 bits
Converts 12-bit temperature to digital word in 750 ms (max.)
User-definable, non-volatile temperature alarm settings
Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)
3-wire adapter for Arduino included
Connections: red: 3-5V, black: ground, yellow: data
The Whadda WPSE326 line tracking sensor is based on the TCRT5000 infrared reflectance sensor, and is commonly used in line following robots, which are mounted at the bottom of the robot chassis.
The line tracking sensor works by detecting reflected light coming from its own infrared LED and by measuring the amount of reflected infrared light. It can detect transitions from light to dark (lines) or even objects directly in front of it.
Sensor adopts TCRT5000, high sensitivity
Sensitivity adjustable by potentiometer
Working voltage: 3.3V - 5V
Operating current: 20 mA
Digital switch output (0 and 1)
2 fixed bolt holes for convenient installation
Small board PCB size: 42 x 10.5 mm
Power indicator light (red) and digital switch output indicator light (green)
The Whadda WPSE346 / GP2Y1010AU0F dust sensor uses an optical sensing method and has a diagonally arranged infrared emitting diode (IRED) and phototransistor. It detects the reflected light of dust in air.
The GP2Y1010AU0F sensor is especially effective in detecting very fine particles like cigarette smoke, and is commonly used in air purifier systems.
The output of the sensor is an analogue voltage proportional to the measured dust density, with a sensitivity of 0.5V/0.1mg/m³.
Operating voltage: 4.5 to 5.5V DC
Operating current: max. 20 mA
Light emitting element: LED
Minimum detectable dust size: 0.5 um
Dust density range: up to 580 ug/m³
Sensing time: < 1 sec.
Output interface: analogue
Output under zero dust conditions: 0 to 1.5V DC
Sensitivity: 0.5 (+/- 0.15 VDC) per 100 ug/m³ change
Accuracy: +/- 30 %
Dimensions : 46.0 x 30.0 x 17.6 mm (1.81 x 1.18 x 0.69")
The Whadda WPSE347 is a LM393 speed sensor module, widely used in motor speed detection, pulse count, and position control.
The sensor is very easy to operate: To measure the speed of a motor, make sure the motor has a disk with holes. Each hole should be equally spaced on the disk. Every time the sensor sees a hole, it creates a digital pulse on the D0 pin. This pulse goes from 0V to 5V and is a digital TTL signal. If you capture this pulse on a development board and calculate the time between the two pulses, you can determine the revolutions speed: (time between pulses X 60)/number of holes.
For example, if you have one hole in the disk and the time between two pulses is 3 seconds, you have a revolutions speed of 3*60 = 180 rpm. If you have 2 holes in the disk, you have a revolutions speed of (3*60/2) = 90 rpm.
4 pin connector: analogue out, digital out, ground, vcc
The Whadda WPSH214 RFM69HCW module is an inexpensive and versatile radio module. You can use it to send text or binary data between two or hundreds of modules. It's perfect for building inexpensive short-range wireless networks for home & building automation, sensor networks, automated meter readings, wireless alarm & security systems, industrial monitoring & control, and many more applications!
The RFM69HCW transceiver module operates over a wide frequency range, including the 315, 433, 868 and 915 MHz license-free ISM (Industry Scientific and Medical) frequency bands. All major RF communication parameters are programmable and most can be set dynamically. The RFM69HCW is optimised for low power consumption while offering high RF output power and channel operation.
This VMA214 RFM69HCW Radio Shield connects the RFM69HCW module to the appropriate lines on the Arduino. By using the RF69 Library, you can send and receive messages via standard 4-wire SPI interface. The library includes command structures for setting up anything from simple non-addressed point-to-point communication to fully addressed networks of clients and routers. Frequency can be set with 61Hz precision to any frequency from 240.0MHz to 960.0MHz.
The shield has on-board power regulation and level shifting, an external antenna via the I-Pex connector and additional jumpers to set the interface and digital communication pins on the Arduino.
Compatible with 3.3v or 5v I/O Arduino Board
Compatible with Arduino Leonardo, Uno, Mega and DUE development boards
SPI interface
Frequency Band: 315, 433, 868 and 915 MHz (programmable)
Suitable for LoRa network applications
Low power consumption
Included external antenna via I-Pex connector
Built-in temperature sensor
Built-in bit synchronizer performing clock recovery
Incoming sync word recognition
Automatic RF Sense and CAD with ultra-fast AFC
Constant RF performance over voltage range of module
168 dB maximum link budget
+20 dBm - 100 mW constant RF output
High sensitivity: down to -120 dBm at 1.2 kbps
High selectivity: 16-tap FIR channel filter
Low current: Rx = 16 mA, 100 nA register retention
Programmable Pout: -18 to +20 dBm in 1 dB step
FSK bit rates up to 300 kb/s
Fully integrated synthesizer with a resolution of 61 Hz
The Whadda WPSH412 is a touch screen with 2.8" display and a microSD slot on a shield.
The shield comes completely assembled, tested and ready-to-use. No cables, no soldering required. Just plug in the shield, load the library and your display will be up and running.
Resolution: 240 RGB (H) x 320 (V)
Display driver: ILI9341 V0.7
Colour depth: 262,000 colours
8-bits, 9-bits, 16-bits, 18-bits interface with 8080-I /8080-II series MCU
6-bits, 16-bits, 18-bits RGB interface with graphic controller
3-line / 4-line serial interface
Full colour mode (idle mode OFF): 262,000 colour (selectable colour depth mode by software)
Reduced colour mode (idle mode ON): 8 colour
Operating temperature: -40 °F to + 185°F (-40 °C to +85 °C)
With the Whadda WSAH194 you can build your own FM radio with a new and enhanced HQ FM receiver module that has an auto-seeking button, 4 presets and volume control.
New and enhanced HQ FM receiver module
Easy to solder SMD FM receiver module
Single button station search function
4 station presets (with confirmation beep when setup)
Restores the last selected station when powered on
The Electronics in Meccano Circuits Shop is an affiliate of Rapid Electronics, and any purchases you make help support this website without affecting the price you pay! Any enquiries regarding products or order status should be directed to Rapid Electronics at www.rapidonline.com.
The Circuits Shop
