Codec Zero is a Raspberry Pi Zero-sized board but it also includes the HAT EEPROM allowing for auto-configuration of the Linux environment if needed. It is the same size as a Raspberry Pi zero but designer for audio signal input and output processes. It supports a range of input and output devices from built-in MEMS microphones, mono Electret microphones,s or mono speakers (1.2W 8Ω).

The Codec Zero delivers bi-directional digital audio signals (I2S) between the Raspberry Pi and onboard Dialog Semiconductor DA7212. It also has GREEN (GPIO23) and RED (GPIO24) LEDs, that can be used for status and a tactile button (GPIO27) that can be used to start an event. The Codec Zero makes a great starting point for a walkie-talkie / intelligent doorbell, vintage radio hack, or Smart-type speaker.

Features:

1. High-performance 24-bit audio codec.
2. Supports common audio sample rates between 8-96kHz.
3. Built-in MEMS microphone (Mic2).
4. Mono Electret microphone (Mic2 left).
5. Automatic MEMS disabling on Mic2 insert detect.
6. Stereo auxiliary input channel (AUX IN) – PHONO/RCA connectors.
7. Stereo auxiliary output channel (Headphone / AUX OUT) – 3.5mm Stereo jack.
8. Flexible analog and digital mixing paths.
9. DSP for ALC (Automatic Level Control).
10. 5-band EQ (Equalisation).
11. No soldering is required.
12. Mono line-out / mini speaker driver: 1.2W @ 5V, THD<10%, R=8Ω.

Package Includes:

1 x Raspberry PIIQ Audio Codec Zero

The WIZnet WizFi360-EVB-Pico is a development board designed for the WizFi360 module, a low-power, compact Wi-Fi module that provides Wi-Fi connectivity for IoT devices.

The development board includes a WizFi360 module, a USB port for power and communication, and various other connectors for interfacing with other devices. The board also consists of an onboard antenna and a U.FL connector for an external antenna, providing flexibility for antenna placement and optimization.

The WizFi360-EVB-Pico is designed to be used with the WIZnet WizFi360-EVB evaluation board, which provides a complete development environment for the WizFi360 module, including software development tools and example code.

Features & Specifications:

1. RP2040 microcontroller with 2MByte Flash
   • Dual-core cortex M0+ at up to 133MHz
   • 264kByte multi-bank high-performance SRAM
   • External Quad-SPI Flash with eXecute In Place (XIP)
2. Includes WizFi360-PA
   • WiFi 2.4G, 802.11 b/g/n
   • Support Station / SoftAP / SoftAP+Station operation modes
   • Support “Data pass-through” and “AT command data transfer” mode
   • Support serial AT command configuration
   • Support TCP Server / TCP Client / UDP operating mode
   • Support configuration of operating channel 0 ~ 13
   • Support auto 20MHz / 40MHz bandwidth
   • Support WPA_PSK / WPA2_PSK encryption
   • Support built-in unique MAC address and user-configurable
   • Industrial grade (operating temperature range: -40 ° C ~ 85 ° C)
   • CE, FCC certification
3. Includes 16M-bit Flash Memory
4. Micro-USB B port for power and data (and for reprogramming the Flash)
5. 40 pin 21×51 ‘DIP’ style 1mm thick PCB with 0.1″ through-hole pins also with edge castellations
6. 3-pin ARM Serial Wire Debug (SWD) port
7. Built-in LDO

Package Includes:

1 x WIZnet WizFi360-EVB-Pico

Raspberry Pi 400 GPIO Header Adapter, Header Expansion. Designed for Raspberry Pi 400 , Color-Coded Header Easy Expansion. it is used to connect various applications to raspberry pie 

Features:

1. Easy to use
2. Color-coded header
3. Designed for Raspberry Pi 400
4. Connectivity Technology: GPIO

Package Include:

1 X PI400-GPIO-ADAPTER-A

1 X Screws pack

Power Management HAT For Raspberry Pi, Supports Charging And Power Output At The Same Time, Fast Load Transient Response, Embedded RTC, And Multiple Protection Circuits

Features:

1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi, series boards
2. Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
3. Onboard PCF8523 RTC chip, provides precise RTC information
4. Onboard MP28167-A buck-boost DC chip for fast load transient response
5. Onboard user-defined button, can be used for Raspberry Pi start-up, safe shutdown, or other customized function
6. Protection circuits such as: power supply anti-reverse, counter-current proof, etc. ensure stable and safe operating
7. Voltage/current monitoring circuit, monitors the Raspberry Pi operating voltage and current in real-time
8. Comes with complete resources and manual

Specifications:

1. Main Controller: Rp2040
2. Communication Interface: Uart + Gpio
3. Communication Baud Rate: 115200bps By Default (Configurable)
4. Power Supply Interface: USB Port Or Ph2.0 Connector
5. USB Power Input Voltage: 5v
6. Ph2.0 Power Input Voltage: 3.3 ~ 4.2v (3.7v Lithium Battery)
7. Embedded Circuits Battery Anti-reverse, Counter Current Proof, Voltage/Current Monitoring
8. Dimensions: 56.5 X 65.0mm
9. Mounting Hole Diameter: 3.0mm

Package Includes:

1 x Waveshare Power Management HAT for Raspberry Pi

SIM7600G-H 4G HAT (B) For Raspberry Pi, LTE Cat-4 4G / 3G / 2G Support, GNSS Positioning, Global Band connected via pogo pin or Micro USB connector .Dedicated Pogo pin for Raspberry Pi Zero/Zero W .Micro USB connector for other Raspberry Pi boards or PC Incorporates SIM7600G-H global band 4G module, compatible with 2G/3G/4G network with global support .

USB HUB connector for other Raspberry Pi boards or PC, providing USB extension and 4G network access .Supports dial-up, telephone call, SMS, TCP, UDP, DTMF, HTTP, FTP, etc. Supports GPS, Bei Dou, Glonass, GALILEO, QZSS, LBS base station positioning .SIM card slot, supports 1.8V/3V SIM card Onboard audio jack and audio decoder for making telephone call. 2x LED indicators, easy to monitor the operating status.

Control via AT commands (3GPP TS 27.007, 27.005, and V.25TER command set). Supports SIM application toolkit: SAT Class 3, GSM 11.14 Release 99, USAT .Comes with development resources and manual (examples for Raspberry Pi)

Features:

1. Suitable For Raspberry Pi / PC
2. Global Band 4G / 3G / 2G Support
3. USB HUB Feature
4. Telephone Call & SMS Support
5. USB HUB connector for other Raspberry Pi boards or PC, providing USB extension and 4G network access.
6. Supports dial-up, telephone call, SMS, TCP, UDP, DTMF, HTTP, FTP, etc.
7. Supports GPS, BeiDou, Glonass, and LBS base station positioning.
8. SIM card slot, supports 1.8V/3V SIM card.

Package include:

1 X SIM7600G-H 4G HAT (B)

1 X LTE Antenna

1 X GPS Antenna

1 X USB-A to micro-B cable

1 X Screws pack

NB-IoT/Cat-M(EMTC)/GNSS HAT For Raspberry Pi, Based On SIM7080G, Globally Applicable. This is a telecommunication HAT which features multi communication functionalities: NB-IoT (Narrow Band-Internet of Things), Cat-M (aka eMTC, enhanced Machine Type Communication), and GNSS (Global Navigation Satellite System).

With the developing of telecommunication technology LTE, 2G/3G networks are fading away, the future world would be dominated by IoT technologies consisting of low bandwidth NB-IoT/Cat-M and high bandwidth 4G/5G standards. This HAT supports global bands of NB-IoT and Cat-M, as well as positioning function. Due to its advantages like small size, low delay, and wide coverage, it is the ideal choice for IoT applications such as intelligent instruments, asset tracking, remote monitoring, e-health, and so on.

Features

1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
2. Supports communication protocols such as TCP/UDP/HTTP/HTTPS/TLS/DTLS/PING/LWM2M/COAP/MQTT
3. Supports GNSS positioning (GPS, GLONASS, BeiDou, and Galileo)
4. Onboard USB interface, to test AT Commands, get GPS positioning data, and so on
5. Breakout UART control pins, to connect with host boards like Arduino/STM32
6. Onboard voltage translator, 3.3V by default, allows to be switched to 5V via onboard jumper
7. SIM card slot, supports ONLY 1.8V SIM card (3V SIM card is not available)
8. 3x LED indicators, easy to monitor the working status
9. Common baudrate auto-negotiation: 9600/19200/38400/57600/115200 bps
10. Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

Package include:

1 X SIM7080G Cat-M/NB-IoT HAT

1 X LTE antenna

1 X GPS External Antenna (B)

1 X USB type A plug to micro plug cable

1 X 2×20PIN female header

1 X RPi screws pack (2pcs)