Reviews Raspberry Pi Development Ebooks

MakerFocus Raspberry Pi 4 Power Expansion Board DockerPi Power Board 20W(5V 4A) Power Supply Safe Shutdown with Cooling Fan Infrared Remote Control Compatible with Raspberry Pi 4 and 3B+

  • DockerPi power board is used to power the Raspberry Pi (or similar SBC) with a typical power of up to 20W (5V/4A) and can run up to 25W (5V/5A) with good heat dissipation..
  • ★It also supplies power to other DockerPi modules to protect the safety of the power supply. It also provides a safe shutdown function, supports infrared remote control switches, button control switches. The link for the one-step automatic installation is obtained in the product description. Restart the Raspberry Pi and complete the installation.
  • ★It has 3*3cm quiet cooling fan, can effectively cool down. We recommend that install the power board on the bottom of the other DockerPi..
  • ★It is recommended to connect 12V 2A or above power input and 12V power from 4-pin headers to other DockerPi, If other modules require 12V power. Note: DockerPi Power Board does not support hot plug..
  • ★Official compatibility test. Support Raspberry Pi, Banana Pi M3, Orange Pi Zero. Other development boards can be compatible if they have I2C peripherals. Note: maybe need to change some software..
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MakerFocus Raspberry Pi 4B Dual Cooling Fans, Raspberry Pi 4B Heatsink kit, Raspberry Pi 4B GPIO Expansion Board DC 5V 0.2A with LED Compatible with Raspberry Pi 4B / 3B+ / 3B / 3A+

  • [Wide application]: Compatible with all versions of Raspberry Pi footnotes, you can use the Raspberry Pi pin, the board is suitable for Raspberry Pi 4B/3B+/3B/3A+, the assembly video tutorial can be obtained in the product guide.
  • [Outstanding Design]: Clear pin mark, GPIO function fully displayed. All GPIO pins are lead out, so when the Raspberry-Pi board is being cooled, its development function will not be affected..
  • [Perfect Cooling Performance]: The cooling fan adopts active cooling mode, the heat can be discharged in time. Besides, it included dual fan, the effect of cooling and ventilation is better..
  • [2 Independent Control Switches]: LED and fan both have switch,you can control the LED and fan individually, it will not bring the dazzing feeling when you use it in the night..
  • [Strong after-sales service team]: We Have a Strong After-sales Service Team: As long as you have any questions about the product,we will resolve your issue immediately if received your email,your satisfactory purchase experience is our greatest hope.How to email us,Plz click MakerFocus and click Ask a questionto email us! Looking forward to your consultation!.
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MakerFocus Raspberry Pi Expansion Board 4 Channel Relay Board Module Power Relay Module for Raspberry Pi 4B/3 Model B+/Raspberry Pi 3/2 Model B (No Programming Required/Programmable)

  • The product operation guide can be obtained in the product guide and document. This Raspberry Pi expansion board supports Raspberry P.
  • The Relay Board gives your Raspberry Pi board the ability to control high voltage/high current devices, and easily makes normal home appliances become intelligent. Can be accessed programmatically or directly by shell. Up to 4 layers can be stacked..
  • Switch the I2C address of the device through the DIP switch on the circuit board to ensure that the four-layer module gets different addresses, thus avoiding the problem of address duplication..
  • The 4 Channel Relay uses high-quality relay modules combined with the most popular microcontroller technology to communicate with the Raspberry Pi. You can use mulitiple relay modules stacked together to add many channels.
  • The 4 Channel module is very fast, easy to install, and supports multi-language development, making it ideal for smart home projects.
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Ingcool GSM/GPRS/GNSS Bluetooth HAT Expansion Board for Raspberry Pi 4B/ 3B+/ 3B/ 2B/ Zero W/ Zero, Based on SIM868 Module Supports SMS, Phone Call, Global Position, Transfer Data, etc.

  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards.
  • Supports SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc. Support GPS, COMPASS, Glonass, LBS base station positioning, omni-positioning. Bluetooth 3.0, supports data transferring through Bluetooth.
  • SIM card slot for 1.8V/3V SIM card, Supports SIM application toolkit: GSM 11.14 Release 99.
  • Baudrate auto detection (1200bps ~115200bps). Onboard USB TO UART converter for UART debugging. 6x LEDs for indicating the module working status. RTC with backup battery holder.
  • Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands). Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32).
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Seeed Studio ReSpeaker 4-Mic Array for Raspberry Pi, Raspberry Pi Microphone

  • ReSpeaker 4-Mic Array for Raspberry Pi（Pi 3/Pi 4 B +) is a 4 microphone expansion board for Raspberry Pi designed for AI and voice applications. This means that you can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on..
  • Different from ReSpeaker 2-Mics Pi HAT, this board is developed based on AC108, a highly integrated quad-channel ADC with I2S/TDM output transition for high definition voice capture..
  • Besides, this 4-Mics version provides a super cool LED ring, which contains 12 APA102 programmable LEDs.With that 4 microphones and the LED ring, Raspberry Pi would have ability to do VAD(Voice Activity Detection), estimate DOA(Direction of Arrival) and show the direction via LED ring, just like Amazon Echo or Google Home..
  • This Raspberry Pi microphone support all Raspberry Pi models, including Raspberry Pi Zero, Raspberry Pi 1 B+, Pi 2 B, Pi 3 B, Pi 3 B+，Pi 4 B..
  • ReSpeaker 4-Mic array does not have audio output. If this is a requirement please consider the ReSpeaker 6-Mic Circular Array Kit For Raspberry Pi, the ReSpeaker 4-Mic Linear Array Kit for Raspberry Pi , or the ReSpeaker Mic Array v2.0..
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Smraza Raspberry Pi 3 B+ Case with Fan, 5V 2.5A Power Supply and 3 Heat Sinks for Raspberry Pi 3 Model B+ (B Plus), 3B, 2B

  • ✓ The Latest Version 9 Layers case for Raspberry Pi 3 model B+ / Raspberry pi 3 /pi 3 model b / pi 2 / pi 2 b (Not include Pi Board).
  • ✓ Raspberry Pi Case has the layout design for the Raspberry pi 3 model b+ and will perfectly protect your pi components.
  • ✓ Easy to access all GPIO ports - Raspberry pi case with cutout to allow Pi's GPIO, HDMI, USB, SD, Power Supply and Other GPIO Ports access.
  • ✓ Made of Acrylic, the raspberry pi 3b case Won’t Block your raspberry pi's Wifi / Bluetooth Signal.
  • ✓5V 2.5A power supply with 59 Inch power cable is durable, on/off switch would cause less wear and tear on your raspberry pi's power port. Package Include: Raspberry Pi 3 B+ Case, Fan, 3 Pcs Heatsinks, 2.5A Power Supply.
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Ingcool Compatible with Raspberry Pi Expansion Board Power Relay Module Kits for Raspberry Pi 4B/3B+/3B/2B/ A+/B+ 5A 250V AC/ 5A 30V DV

  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards.
  • The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent..
  • High quality relays, loads up to 5A 250V AC or 5A 30V DC.Photo coupling isolation, prevent interference from high voltage circuit.
  • Relay control jumper, allows to control the relays by custom pins other than the default pins.Onboard LEDs for indicating relays status.
  • Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835.
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Miuzei Raspberry Pi 4 Case with Fan Cooling Pi 4 Case with 4 Pcs Aluminum Heat Sinks Pi 4B Case for Raspberry Pi 4 Model B -Black/Blue (Pi 4 Board Not Included)

  • Raspberry Pi 4 Case for Raspberry Pi 4 - Miuzei clear blue acrylic raspberry pi 4b case is specially designed for raspberry pi 4 modle b / 4 b, and perfect compatible with raspberry pi 4 /4b. assembly easy for beginners and amateur..
  • Raspberry Pi 4 Case With Fan - New Raspberry pi 4b case with a Silence DC 5V cooling fan and 4 pcs Aluminum heatsinks, cooling system keep your Raspberry pi 4 B cool quickly even the CPU under high load..
  • Raspberry Pi 4 Model B Case - acrylic pi 4 case won’t block the signal.the rubber feet on the bottom lid can provide a stable platform for raspberry pi 4 case so that it allows air to circulate on the bottom side of the board and avoid the screws scratching the desk surface..
  • Easy To Access All Ports - Miuzei raspberry pi 4 case fan can perfect Access to the USB-C Power Connector, Dual Micro HDMI, Audio/Video, USB and Ethernet Ports, GPIO Port, Camera Cable, and Access to the Micro SD Card..
  • Packaging Content & After -Sales - you will receive pi 4 clear blue case, 4 piecess raspberry pi heatsink, 35mm cool fan, 4 piecess rubber feet, screwdrive, awesome looking, it can make your pi looks cooler than others. if you encounter any problems, you can contact us at any time, and we will answer you..
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Geekworm Raspberry Pi 4 Case, Raspberry Pi 4 Heatsink Aluminum Alloy Passive Cooling Case (P330)

  • 【Passive Cooling Aluminum Alloy Case】Geekworm Raspberry Pi 4 Case - P330 is designed for Raspberry Pi 4 Model B computer only, support Raspberry Pi 4B 1GB/2GB/4GB/8GB version.
  • Cool your Raspberry Pi 4 without fans and noise..
  • 【Add Copper Heatsink for Better Cooling】Equipped with a CPU copper heatsink(to replace the thermal pad) to attach with CPU grease on CPU of Pi4 for better heat dissaption (Not include CPU grease).
  • 【High Quality Aluminum Material】Sturdy and durable, keep your Raspberry Pi 4 free from scratches, dust and damage..
  • 【Easy Access to Raspberry Pi 4 Ports】Easy installation. Easy access to all Raspberry Pi 4 ports, such as GPIO, Micro HDMI, TF Card, USB-C Power Supply ".
  • 【Packing List】1 x Raspberry Pi 4 Aluminum Alloy Case, 1 x Copper Heatsink, 1 x Screws Pack 【Note】NOT include raspberry pi board.
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