Waveshare

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US$36.17
AVR ISP Programmer, compatible with AT AVRISP mkII from ATMEL. A professional In-System Programmer. Supports all AVR devices with ISP or PDI interface, including XMEGA. Supports AVR Studio 4/5/6 or higher version (delivered with firmware for AVR Studio 5, can be updated to support other AVR Studio versions).
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US$15.42
Features At A Glance: Compatible with RS232/RS485 standard, converting the RS232 signal into balanced differential RS485 signal. Stable transmission at the rate of 300~115200bps. Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption. Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic.
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US$36.17
Features At A Glance: Trying to make the Pi become a robot that can detect movement and orientation? Or using the Pi to collect environmental temperature, humidity, and barometric pressure data? This HAT would be your ideal choice. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. Onboard QMI8658C+AK09918 (3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer), detects movement, orientation, and magnetic. Onboard SHTC3 digital temperature and humidity sensor, allows monitoring the environment.
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US$126.26
Wide Range Of Applications: Industrial Control, Charging Pile, Smart Home, Medical, Internet Of Things, Robot, Vehicle-Mounted Instruments, Vending Instruments, Intelligent CNC, Cosmetic Instruments.
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US$35.26
Features At A Glance: Support 5G modules with M.2 (NGFF) Key B interface, compatible with SIMCom and Quectel 5G modules. Support 5G modules with 3042/3052 form factor, such as SIM82XX, and RM50XQ series 5G modules. USB 3.1 Type A port for connecting to PC, Raspberry Pi, or Jetson Nano host board to enable high speed 5G network. 4x SMA antenna connectors, easy to install the antenna. Onboard SIM card slot for NANO SIM card.
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US$24.34
The PoE HAT (E) is a mini 802.3af-compliant Power Over Ethernet accessory for the Raspberry Pi 3B+/4B. By using this small HAT and some proper 802.3af-compliant power sourcing equipments, it is possible to provide both network connection and power supply for your Raspberry Pi in only one Ethernet cable.
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US$34.99
Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. 1-Ch CAN, adopts MCP2515 controller and CAN transceiver, converts SPI to CAN. 2-Ch RS485, adopts SC16IS752+SP3485 dual-chip combination, converts SPI to RS485. Onboard power conversion circuit, supports 8~28V wide voltage power supply, can power the Raspberry Pi at the same time. Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal. Onboard unibody digital isolation, for isolating the signal, reliable and jamproof, low power consumption.
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US$17.97
3-In HDMI Switcher. 3 In 1 Out | One-Click Switch | 4K Support. Allows Multiple Input Devices To Share One HDMI Screen, High-Resolution And Smooth.
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US$21.34
No backlight, keeps displaying last content for a long time even when power down. Ultra low power consumption, basically power is only required for refreshing. Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32).
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US$29.53
No backlight, keeps displaying last content for a long time even when power down. Ultra low power consumption, basically power is only required for refreshing. SPI interface, for connecting with controller boards like Raspberry Pi/Jetson Nano/Arduino/STM32, etc. Onboard voltage translator, compatible with 3.3V/5V MCUs. Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32).
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US$79.58
No backlight, keeps displaying last content for a long time even when power down. Ultra low power consumption, basically power is only required for refreshing. Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32).
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US$15.88
No backlight, keeps displaying last content for a long time even when power down. Ultra low power consumption, basically power is only required for refreshing. Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32).
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US$22.52
No backlight, keeps displaying last content for a long time even when power down. Ultra low power consumption, basically power is only required for refreshing. SPI interface, for connecting with controller boards like Raspberry Pi/Jetson Nano/Arduino/STM32, etc. Onboard voltage translator, compatible with 3.3V/5V MCUs. Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32).
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US$35.26
No backlight, keeps displaying last content for a long time even when power down. Ultra low power consumption, basically power is only required for refreshing. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano. SPI interface, for connecting with controller boards like Raspberry Pi/Arduino/STM32, etc. Onboard voltage translator, compatible with 3.3V/5V MCUs. Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32).
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US$29.80
1.51inch Transparent OLED. Embedded Independent Driver Chip, Using SPI/I2C Interfaces. Comes with examples for Raspberry Pi, Arduino, STM32, etc. OLED transparent module, full viewing angle. Adopts 4-wire SPI and I2C interface, better compatibility, fast data rate. Comes with development resources (examples for Raspberry Pi/Arduino/STM32).
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