Best selling Single board computer kits from Purecrea

On this page you’ll find a ranking of the best Single board computer kits from Purecrea. To give you a quick overview, we’ve added the most important product details. This page always stays fresh and updates automatically.

1. Purecrea RTC DS3231 time module with AT24C32 EEPROM memory 32K

The DS3231 module is an accurate I2C real-time clock (RTC) with an integrated temperature quartz oscillator and crystal. The module must be powered by a rechargeable buffer battery to maintain the time during a power outage. If you want to operate the clock with a more affordable CR2032 button cell battery, you need to remove the resistor (201) on the right side above the SCL label. The date is automatically adjusted, and leap year corrections are taken into account. The module offers two configurable alarms and a calendar. Address and data are transmitted bidirectionally via an IIC or I2C bus. The module has a very accurate digital temperature sensor integrated, which can be queried via the I2C interface. You can find a suitable library for controlling the DS3231 clock in the Arduino Library Manager, which you can install.

Technical details:
Operating voltage: 3.3V to 5.5V
RTC chip: DS3231
Clock accuracy: 0-40 ℃, 2ppm
Calendar with 2 alarms
EEPROM: AT24C32 (storage capacity 32K)
IIC / I2C bus interface
Battery: CR2032
RTC continues to run during power failure
I2C address clock: 0x68
I2C address memory: 0x57
Size: 38.5 x 22 x 13 mm
Weight: 7 g

Delivery includes:
1x RTC DS3231 time module with AT24C32 (without battery). 

2. Purecrea Mini USB UART FTDI Programmer 3.3/5V USB Serial

This breakout board contains an FT232 compatible chip that enables USB to serial communication. This programming adapter is not necessary on an Arduino Uno. However, if you have an ESP8266, Sonoff or Arduino ProMini, you will need this board for programming. There is a jumper on the board with which you can easily switch between 3.3 V or 5 V logic. On this board, the DTR is brought out instead of the RTS pin. This makes it possible to automatically reset the micro controller after uploading a programme.

Technical details:
Type: FT232 compatible
Voltage: 3.3V or 5V
LED: Power, RX and TX
Mini USB connector
Size: 43.5 x 18.2 x 11.5mm
Weight: 3.6g

Scope of delivery:
1x Breakout Board FTDI
1x jumper 

3. Purecrea 5m WS2812B 160LED/m 5V Ultra Narrow LED NeoPixel Strip Rolle

The 5-meter long WS2812B Ultra Narrow LED NeoPixel Strip from Purecrea is an innovative solution for creative lighting projects. With a width of just 2.7 mm, this extremely narrow LED strip fits perfectly into tight spaces, such as behind TVs or along cabinet edges. Each pixel is equipped with an integrated WS2812B IC, allowing for individual control. This opens up the possibility to create impressive color effects and dynamic animations that can be controlled with various controllers like Arduino or Raspberry Pi. With a density of 160 LEDs per meter, the strip delivers vibrant and uniform color representations. Additionally, the flexible strip is easy to bend and can be cut to the desired length, making it ideal for indoor lighting, model building, and ambient effects. Operating at a safe low voltage of 5V makes it particularly suitable for use in children's rooms or craft projects.

- Extremely narrow design of 2.7 mm for tight spaces
- Individually addressable pixels for dynamic effects
- High density of 160 LEDs/m for vibrant colors
- Flexible and cuttable for custom applications. 

4. Purecrea XL4016 Step-Down DC-DC Buck Converter 300W

This high-power DC-DC CC/CV step-down module 300W is based on the XL4016. With this powerful step-down converter, you can regulate voltages between 7-40V DC down to a lower voltage range of 1.2V to 35V. The output voltage can be precisely adjusted using the built-in multiturn potentiometer. The second multiturn potentiometer allows you to set the current limit. This step-down is suitable as an LED driver for UV LEDs in SLA printers, voltage converters, DIY chargers, or for powering various devices.

General information and operation of the 300W Step-Down XL4016:
Potentiometer:
Increase: clockwise
Decrease: counterclockwise
Function:
The potentiometer on the input voltage side is used for voltage adjustment (CV).
The potentiometer on the output side is used for current setting (CC).
Two-color LED indicator:
Current is not limited: green
Current is limited: red

Technical details:
Connection: screw terminals
Input voltage: 7-40V DC
Output voltage: 1.2-35V DC
Output current: 8A (max.), up to 300W
Output noise: 50mV (20MHz bandwidth)
Load regulation: 1%
Voltage regulation: 1%
Dynamic response speed: 5% 200µs
Switching frequency: 300kHz
Efficiency: up to 95%.
Protection features: thermal shutdown, current-limiting output, short-circuit protection
Dimensions: 65 x 47 x 22mm
Weight: 65.5g

Scope of delivery:
1x XL4016 Step-Down DC-DC Buck Converter 300W. 

5. Purecrea AM2302 Digital temperature and humidity sensor with cable

The AM2302 is a high-quality digital temperature and humidity sensor that provides precise measurements for a variety of applications. With its compact design and pre-attached cable, it is easy to install and ready to use immediately. The sensor delivers accurate readings and is ideal for home automation, hobby projects, and scientific applications. Thanks to its digital output, the data can be easily integrated into microcontroller systems such as Arduino or Raspberry Pi. The AM2302 offers high reliability and a long lifespan, making it an excellent choice for various projects. With a wide measurement range for temperature and humidity, it meets all common requirements and is calibrated for immediate operation.

Highlights:
- Measures both temperature and humidity
- Easy integration into microcontroller systems
- Calibrated and ready to use immediately. 

6. Purecrea Breadboard / breadboard half-size

This white 400-point breadboard, also known as a prototyping board or plugboard, is used for building electronic circuits. Components do not need to be soldered as with traditional circuit boards; instead, they can be directly plugged into the board. This makes it especially suitable for prototypes or experimental setups. This breadboard is ideal for both hobbyists and schools. On the left and right sides, there are GND and VCC pins that are connected. It is best to connect these pins to the power supply of your Arduino, or you can use a plug-in power supply, which we also offer under the name "Power Adapter for Breadboard." The breadboard features pins in the center that are labeled in the columns with "a" to "j" and in the rows with numbers 1, 2, etc. The pins "a, b, c, d, e" are interconnected, as are the pins "f, g, h, i, j."

Technical details:
Type: ZY-60
Size: 83 x 55 x 9.5 mm
Number of terminals: 400
Color: White
Weight: 32 g

Delivery includes:
1x Breadboard ZY-60. 

7. Purecrea GPIO Expansion Board Plus for Raspberry Pi

This expansion board is perfect for prototyping! With the board you can easily connect all GPIO pins from your Raspberry Pi (A+, B+, Pi2, Pi3) to a breadboard and build your test circuits. The GPIO numbers printed on the T-adapter are also practical. Also included is a 20cm long connection cable with which you can easily connect the Raspberry Pi to the expansion board! The board is delivered ready soldered. So you can just plug it in and get started.

Technical details:
Number of pins: 40 pieces
Cable length: 20cm
Suitable for Raspberry Pi version: A+, B+, Pi2, Pi3 and Raspberry Pi 4
Colour: Red
Size: 72 x 58mm
Weight: 42g

Scope of delivery:
1x GPIO Expansion Board
1x ribbon cable 40 Pin (2x20P). 

8. Purecrea DRV8825 Stepper Motor Driver Stepper Driver Module

The DRV8825 is a driver for stepper motors up to 2A. The driver also supports micro stepping with which you can drive very fine and low-vibration movements. The driver is perfectly suited for RAMPS 1.4 boards. These are used in 3-D printers. You can also use it for other mechanical Arduino projects where you want to control stepper motors. It comes with an aluminium heat sink that you can glue on. When gluing it on, make sure that you do not cause a short circuit. The DRV8825 module has a pinout and interface that is almost identical to the predecessor A4988 and can therefore be easily replaced.

Technical details:
Type: DRV8825 Stepper Motor Driver Stepper Driver Module
Operating voltage driver (VMOT): 8.2 to 45V
Max current with heat sink and fan: 2.2A
Logic voltage: 3 to 5.5V (ESP8266 and Raspberry Pi suitable)
Size: 20 x 15 x 16mm
Weight: 3.5g

Scope of delivery:
1x DVR8825 stepper motor driver stepper driver module.
1x aluminium heat sink to stick on. 

9. Purecrea USB Logic Analyzer 8 Channel 24MHz

The USB Logic Analyzer from Purecrea is a versatile development board that is ideal for debugging and analyzing digital signals. With eight channels and a maximum sampling rate of 24 MHz, this device allows for precise capture and analysis of protocols such as I2C, UART, SPI, CAN, Midi, and 1Wire. The use of PulseView as software provides a user-friendly interface for visualizing the captured data. Its compact design and lightweight make the Logic Analyzer a practical tool for developers and technicians seeking a reliable solution for their projects. The analyzer is compatible with a supply voltage of 2V to 5.5V and offers a high impedance of 1M Ohm, making it a flexible tool for various applications.

- Maximum sampling rate of 24 MHz with adjustable values between 25 kHz and 24 MHz
- Supports a variety of protocols such as I2C, UART, SPI, CAN, Midi, and 1Wire
- High impedance of 1M Ohm for versatile applications
- Compatible with PulseView software for easy data visualization
- Compact dimensions and lightweight design for easy handling. 

10. Purecrea PN532 NFC RFID Module V3 Set with RFID Card and Key

The PN532 is a very flexible chip, as it can be interfaced via 3.3V TTL UART, I2C, or SPI. With the PN532, you can also read NFC chips. The PN532 works with all RFID and NFC chips from types 1 to 4, as well as with NXP MiFare tags. Additionally, the PN532 can simulate an NFC tag and read it with an NFC-enabled phone. You can set the desired communication mode, such as UART, SPI, or I2C, using the DIP switches on the board. A suitable library can be found under Arduino by searching for PN532 in the libraries.

Supports the following cards:
Mifare 1k, 4k, Ultralight, and DesFire cards
ISO/IEC 14443-4 cards like CD97BX, CD light, Desfire, P5CN072 (SMX)
FeliCa cards like RCS_860 and RCS_854

Technical details:
Chip: PN532
Interfaces: I2C, SPI, UART
Frequency: 13.56MHz
Color: Red
Reading distance: approximately 5 to 7 cm
Diameter of mounting holes: 3 mm
Dimensions of RC522 S50 card: 85.5 x 54 x 0.85 mm
Dimensions of S50 key fob: 40.5 x 32 x 3.8 mm
Dimensions of PN532 module: 43 x 40 x 3.5 mm
Weight: 20 g

Delivery includes:
1x PN532 Module V3
3x 4-pin angled header
4x Dupont cables F/F 20 cm
1x Mifare S50 card transponder tag
1x Mifare S50 key fob transponder tag. 

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