Categories
Hardware

WEMOS D1 mini ESP32

ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 series employs a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations and includes built-in antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power-management modules.

  • CPU: Xtensa dual-core (or single-core) 32-bit LX6 microprocessor
  • Ultra low power (ULP) co-processor
  • 520 KiB SRAM
  • Wi-Fi: 802.11 b/g/n
  • Bluetooth: v4.2 BR/EDR and BLE (shares the radio with Wi-Fi)
  • 12-bit SAR ADC up to 18 channels
  • 2 × 8-bit DACs
  • 10 × touch sensors (capacitive sensing GPIOs)
  • 4 × SPI
  • 2 × I²S interfaces
  • 2 × I²C interfaces
  • 3 × UART
  • SD/SDIO/CE-ATA/MMC/eMMC host controller
  • SDIO/SPI slave controller
  • Ethernet MAC interface with dedicated DMA
  • CAN bus 2.0
  • Infrared remote controller (TX/RX, up to 8 channels)
  • Motor PWM
  • LED PWM (up to 16 channels)
  • Hall effect sensor
  • Ultra low power analog pre-amplifier

https://www.ebay.com/itm/183413480551

Categories
Hardware

Grasshopper board

STM32L082 Development Board with SX1276 LoRa Radio, programmable using Arduino IDE via USB Connector.

The development board exposes 19 GPIOs to the user as well as 3V3, GND, VIN, and VREF (for the analog sector), has an indicator led on GPIO 13 as well as a power-on led that can be disabled via a solder jumper for lowest power usage, and has an on-board antenna suitable for either 868 or 915 MHz.

https://www.seeedstudio.com/Grasshopper-Development-Board-p-4792.html

Categories
Hardware

Programmable LED snowflake

Enjoy the warm and light brough up by this fancy cute LED snowflake board for 2020 Christmas.

The snowflake board carries 37 true-color LEDs (Model: WS2812B) which supports displaying various lighting patterns of any colors.

The board is controlled by the STC15W204S microcontroller integrated with 8051 core. Users can design the program to customize any creative light patterns such as fireworks, spin-wheels, shinny stars…The CH340 USB-to-Serial chip is utilized so that users simply need one Micro-USB cable to for both power and uploading the program.

https://www.seeedstudio.com/Programmable-LED-Snowflake-Board-for-Christmas-p-4776.html

Categories
Hardware

Raspberry Pi Hat for Wio Terminal

This is an adapter board for connecting Wio Terminal with Raspberry Pi’s Pi Hats. This makes it a lot easier for connecting them and of course better appearance. Before this simple design, you will need to use jumper wires.

https://www.seeedstudio.com/40-Pin-Raspberry-Pi-Hat-Adapter-Board-For-Wio-Terminal-p-4730.html

Categories
Hardware

Raspberry Pi 4 8GB

Raspberry Pi 4 is the latest product in the popular Raspberry Pi range of computers, and this is the version with the highest RAM offered by a Raspberry Pi ever (8GB). It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior-generation Raspberry Pi 3 Model B+.

https://www.seeedstudio.com/Raspberry-Pi-4-Computer-Model-B-8GB-p-4595.html

Categories
Hardware

CH551G development board

CH551G development board features the CH551 chip, which is an enhanced e8051 core single-chip microcomputer compatible with MCS51 instruction set. 79% of its instructions are single-byte single-cycle instructions, and the average instruction speed is 8-15 times faster than the standard MCS51.

More information:
https://www.seeedstudio.com/CH551G-Development-board-p-4764.html

Categories
Chart

Chart of the week

https://iotguru.cloud/field/kDVh4PHyiu3X9dHwKCMR6w/temperature

Categories
Hardware

M5Stack Lite ESP32 board

Atom Lite is a very compact development board in the M5Stack development kit series with a size of only 24 * 24mm. It provides more GPIO for user customization which is very suitable for embedded smart home devices and in making smart toys.

  • USB Type-C
  • ESP32-based
  • 4 MByte flash
  • Reset button
  • RGB led
  • Programmable button
  • Infra-red
  • GPIO (Dupont Pins)

More information:
https://www.banggood.com/M5Stack-ATOM-Lite-ESP32-Development-Board-Kit-Neo-LED-Blockly-Programmable-Kit-p-1645120.html

Categories
Hardware

Arduino sensor kit

The Arduino Sensor Kit is a joint electronics starter kit from Seeed and Arduino. It integrates 10 commonly used electronics modules on one PCB, so no breadboard, no soldering, and even no wiring are required. The Arduino content team has also prepared a step-by-step tutorial for this kit. All these features make it an ideal Arduino starter kit for Steam education and online teaching.

  • LED
  • Buzzer
  • OLED display
  • Button
  • Rotary potentiometer
  • Light meter
  • Sound meter
  • Temperature and humidity sensor
  • Air pressure sensor
  • 3-axis acceleration sensor

More information:
https://www.seeedstudio.com/Arduino-Sensor-Kit-Base-p-4743.html

Categories
Hardware

ESP32 eInk development kit

  • ESP32 Standard wireless functions
  • WiFi、Bluetooth
  • Internal 16M Flash
  • Low Power Display
  • Multi-Point touch screen
  • 180 degree viewing angle
  • Built-in Magnet
  • Internal 1150mAh Battery
  • Expandable – HY2.0-4P 3 x external expansion ports

More information:
https://www.banggood.com/M5Stack-M5Paper-ESP32-Development-Kit-960X540-4_7-Inch-eInk-Display-235-PPI-IoT-Terminal-E-Book-Industrial-Control-Panel-p-1779386.html?cur_warehouse=CN