ABRACON
Adafruit
Analog Devices Inc.
Antenova
Arduino
ArduSimple
CCS
CEL
Conexio Technologies
DFRobot
Eurotech
Fanstel
Inventek Systems
LPRS
Maxtena
Mikroe
Nordic Semiconductor
Olimex Ltd.
Pimoroni
Quectel
Seeed Studio
Skyworks
SparkFun Electronics
STMicroelectronics
Taoglas
Telit Cinterion
Tinkerforge
u-blox
Antenna Development Tools
Cellular Development Tools
GPS Development Tools
Multiprotocol Development Tools
Add-On Boards
Antenna Kits
Application Boards
Breakout Boards
Development Boards
Development Kits
Development Platforms
Evaluation Boards
Evaluation Kits
Evaluation Modules
Expansion Boards
Shields
Starter Kits
Wireless Shields
3-Wire
Analog, GPIO, I2C, PWM, SPI, UART
I2C
I2C, Serial
I2C, SPI, UART
I2C, SPI, UART, USB
I2C, UART
I2C, UART, USB
IDC10
Serial
UART
UART, GNSS USB
UART, USB
USB
USB, UART, GPIO