The ESP8266 is an impressive, low cost WiFi module suitable for adding WiFi functionality to an existing microcontroller project via a UART serial connection. The module can even be reprogrammed to act as a standalone WiFi connected device – just add power! 802.11 b/g/n protocol Wi-Fi Direct (P2P), soft-AP Integrated TCP/IP protocol stack This module is a self-contained SOC (System On a Chip) that doesn’t necessarily need a microcontroller to manipulate inputs and outputs as you would normally do with an Arduino , for example, because the ESP-01 acts as a small computer. Thus, you can give a microcontroller internet access like the Wi-Fi shield does to the Arduino, or you can simply program the ESP8266 to not only have access to a Wi-Fi network, but to act as a microcontroller as well, which makes the ESP8266 very versatile.
This CAN Module is based on the CAN bus controller MCP2515 and CAN transceiver TJA1050. With this module, you will easy to control any CAN Bus device by SPI interface with your MCU, such as Arduino Uno and so on. Features Support CAN V2.0B Communication rate up to 1 MB/s Working Voltage: 5 V Working Current: 5 mA Interface: SPI Downloads MCP2515 Datasheet TJA1050 Datasheet
The default configuration holds a mini breadboard (included), an SD card adapter, 2x micro SD cards, 2x USB devices, a micro-USB shim and of course the Raspberry Pi Zero itself.
Users can decide to use the micro-USB shim slot to hold a micro-HDMI adapter, or you may want to hold a Portsplus or similar GPIO reference card in the SD adapter slot. You can choose to store your USB micro-SD card reader or even other larger USB devices such as the USBDoctor. Use it in whatever way works best for you.
All of the Raspberry Pi Zero ports are accessible from the ZeroDock, including the camera port and reset/composite pin header. pHATs are also not obstructed, so you’re free to prototype with your favourite add-on boards.
The case is a stylish mix of clear and black acrylic layers, black fixings and a clear breadboard, fitting in well alongside most desktop PCs/monitors.
Assembly guide available here.
Kit includes
4 layer laser-cut acrylic case
Case and Raspberry Pi fixings
Mini breadboard
No more searching for micro-SD cards, SD adapters, USB-C adapters or USB devices. It’s all here, every time you’re ready to prototype a project, in one neat and tidy package.
Our example configuration holds your Raspberry Pi 4, a 400-point clear breadboard, 4 micro-SD cards, an SD-adapter, 4x USB devices and 2x universal slots (great for USB-C adapters or anything else you want to store).
You can of course use the storage slots for whatever you like... Customise it and use it in whatever way works best for you!
Despite sitting flush with the top glass-effect acrylic layer of the dock, all of the Raspberry Pi’s ports are accessible, including access to the micro-SD slot. HATs can also be fitted.
The dock is made up of 4 slick, sandwiched layers of matte black and glass-effect laser-cut acrylic! A really stunning and useful home for your Raspberry Pi and projects!
Assembly guide available here.
Kit includes
4 layer laser-cut acrylic dock
400-point clear breadboard
Fixings and spacers
The Arduino Micro contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started. It has a form factor that enables it to be easily placed on a breadboard.
The Micro board is similar to the Arduino Leonardo in that the ATmega32U4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Micro to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.
Specifications
Microcontroller
ATmega32U4
Operating Voltage
5 V
Input Voltage
7 V - 12 V
Analog Input Pins
12
PWM Pins
7
DC I/O Pin
20
DC Current per I/O Pin
20 mA
DC Current for 3.3 V Pin
50 mA
Flash Memory
32 KB of which 4 KB used by the bootloader
SRAM
2.5 KB
EEPROM
1 KB
Clock Speed
16 MHz
LED_Builtin
13
Length
45 mm
Width
18 mm
Weight
13 g
The SparkFun RP2350 Pro Micro provides a powerful development platform, built around the RP2350 microcontroller. This board uses the updated Pro Micro form factor. It includes a USB-C connector, Qwiic connector, WS2812B addressable RGB LED, Boot and Reset buttons, resettable PTC fuse, and PTH and castellated solder pads.
The RP2350 is a unique dual-core microcontroller with two ARM Cortex-M33 processors and two Hazard3 RISC-V processors, all running at up to 150 MHz! Now, this doesn't mean the RP2350 is a quad-core microcontroller. Instead, users can select which two processors to run on boot instead. You can run two processors of the same type or one of each. The RP2350 also features 520 kB SRAM in ten banks, a host of peripherals including two UARTs, two SPI and two I²C controllers, and a USB 1.1 controller for host and device support.
The Pro Micro also includes two expanded memory options: 16 MB of external Flash and 8 MB PSRAM connected to the RP2350's QSPI controller. The RP2350 Pro Micro works with C/C++ using the Pico SDK, MicroPython, and Arduino development environments.
Features
RP2350 Microcontroller
8 MB PSRAM
16 MB Flash
Supply Voltage
USB: 5 V
RAW: 5.3 V (max.)
Pro Micro Pinout
2x UART
1x SPI
10x GPIO (4 used for UART1 and UART0)
4x Analog
USB-C Connector
USB 1.1 Host/Device Support
Qwiic Connector
Buttons
Reset
Boot
LEDs
WS2812 Addressable RGB LED
Red Power LED
Dimensions: 33 x 17.8 mm
Downloads
Schematic
Eagle Files
Board Dimensions
Hookup Guide
RP2350 MicroPython Firmware (Beta 04)
SparkFun Pico SDK Library
Arduino Pico Arduino Core
Datasheet (RP2350)
Datasheet (APS6404L PSRAM)
RP2350 Product Brief
Raspberry Pi RP2350 Microcontroller Documentation
Qwiic Info Page
GitHub Repository
The QA403 is QuantAsylum's fourth-generation audio analyzer. The QA403 extends the functionality of the QA402 with improved noise and distortion performance, in addition to a flatter response at band edges. The compact size of the QA403 means you can take it just about anywhere.
Features
24-bit ADC/DAC
Up to 192 kS/s
Fully isolated from PC
Differential Input/Output
USB powered
Built-in Attenuator
Fast Bootup and Driverless
The QA403 is a driverless USB device, meaning it’s ready as soon as you plug it in. The software is free and it is quick and easy to move the hardware from one machine to the next. So, if you need to head to the factory to troubleshoot a problem or take the QA403 home for a work-from-home day, you can do it without hassle.
No-Cal Design
The QA403 comes with a factory calibration in its flash memory, ensuring consistent unit-to-unit performance. On your manufacturing line you can install another QA403 and be confident what you read on one unit will be very similar to the next unit. It is not expected that re-calibration will be required at regular intervals.
Measurements
Making basic measurements is quick and easy. In a few clicks you will understand the frequency response, THD(+N), gain, SNR and more of your device-under test.
Dynamic Range
The QA403 offers 8 gain ranges on the input (0 to +42 dBV in 6 steps), and 4 gain ranges on the output (-12 to +18 dBV in 10 dB steps). This ensures consistent performance over very wide ranges of input and output levels. The maximum AC input to the QA403 is +32 dBV = 40 Vrms. The maximum DC is ±40 V, and the maximum ACPEAK + DC = ±56 V.
Easy Programmability
The QA403 supports a REST interface, making it easy to automate measurements in just about any language you might anticipate. From Python to C++ to Visual Basic—if you know how to load a web page in your favorite language, you can control the QA403 remotely. Measurements are fast and responsive, usually with dozens of commands being processed per second.
Isolated and USB Powered
The QA403 is isolated from the PC, meaning you are measuring your DUT and not chasing some phantom ground loop. The QA403 is USB powered, like nearly all our instruments. If you are setting up remotely, throw a powered hub in your bag and your entire test setup can be running with a minimum of cables.
Goodbye Soundcard, Hello QA403
Tired of trying to make a soundcard work? The calibration nightmare? The lack of gain stages? The limited drive? Are you tired of dealing with the fixed input ranges? The worry that you might destroy it with too much DC or AC? Tired of the ground loops? That’s why QuantAsylum built the QA403.
Specifications
Dimensions
177 x 44 x 97 mm (W x H x D)
Weight
435 g
Case Material
Powder-coating Aluminum (2 mm thick front panel, 1.6 mm thick top/bottom)
Downloads
Datasheet
Manual
GitHub
2x16 Character LCD Module (blue/white)
Pin No. Pin Name Descriptions 1 VSS Ground 2 VDD Supply voltage for logic 3 V0 Input voltage for LCD 4 RS Data / Instruction Regster Select (H : Data signal, L : Instruction signal) 5 R/W Read / Write (H : Read mode, L : Write mode) 6 E Enable signal 7 DB0 Data bit 0 8 DB1 Data bit 1 9 DB2 Data bit 2 10 DB3 Data bit 3 11 DB4 Data bit 4 12 DB5 Data bit 5 13 DB6 Data bit 6 14 DB7 Data bit 7 15 LED_A Backlight Anode 16 LED_K Backlight Cathode
Functionality, structure and handling of a power module
For readers with first steps in power management the “Abc of Power Modules” contains the basic principles necessary for the selection and use of a power module. The book describes the technical relationships and parameters related to power modules and the basis for calculation and measurement techniques.
Contents
Basics
This chapter describes the need of a DC/DC voltage converter and its basic functionality. Furthermore, various possibilities for realizing a voltage regulator are presented and the essential advantages of a power module are mentioned.
Circuit topologies
Circuit concepts, buck and boost topologies very frequently used with power modules are explained in detail and further circuit topologies are introduced.
Technology, construction and regulation technology
The mechanical construction of a power module is presented, which has a significant influence on EMC and thermal performance. Furthermore, control methods are explained and circuit design tips are provided in this chapter.
Measuring methods
Meaningful measurement results are absolutely necessary to assess a power module. The relevant measurement points and measurement methods are described in this chapter.
Handling
The aspects of storage and handling of power modules are explained, as well as their manufacturing and soldering processes.
Selection of a power modules
Important parameters and criteria for the optimal selection of a power module are presented in this section.
This version of the Micro OLED Breakout is exactly the size of its non-Qwiic sibling, featuring a screen that is 64 pixels wide and 48 pixels tall and measuring 0.66' across. But it has also been equipped with two Qwiic connectors, making it ideal for I²C operations. We've also added two mounting holes and a convenient Qwiic cable holder incorporated into a detachable tab on the board that can be easily removed thanks to a v-scored edge. We've even made sure to include an I²C pull-up jumper and ADDR jumper on the back of the board, so if you have your own I²C pull-ups or need to change the I2C address of the board! Features Qwiic-Connector Enabled Operating Voltage: 3.3V Operating Current: 10mA (20mA max) Screen Size: 64x48 pixels (0.66' Across) Monochrome Blue-on-Black I²C Interface
