AdaFruit, Seeed, SparkFun, DFRobot, DigiKey
Over at ITEAD, they have come out with the Sonoff iFan02. This replaces a standard FAN control mechanism with a WiFi enabled one. Provides three fan speeds and dimming control over a light as well as an IR remote.
Mobile connectivity boards are still fairly expensive, but coming down in price. This Pi hat runs the U-blox LARA-R203 module giving you LTE CAT1 with a fallback to 2G. Access is over USB or UART and they’ve thrown in a couple of Grove ports as well.
Then there’s the Wio LTE, which is a board giving you LTE Cat-M1 and NB-IoT. It runs an STM32 breaking out 6 Grove ports and an SD slot. It can be programmed up with the Arduino IDE, MBed or Espruino.
AdaFruit have come out with the ItsyBitsy M4 Express. Sporting the almost new SAMD51 MCU. This is a step up from the humble SAMD21, giving you a 120MHz Cortex M4, 512KB flash and 192KB RAM. The board also has an additional 2MB SPI flash allowing you to run CircuitPython code.
The Sunflower is a pretty decent Solar Power Manager board. It allows charging a battery using MPPT from a 7 to 30v solar panel input with a maximum charge current of 2A. It also provides three regulated outputs; 1A at 3.3v, 1.5A at 5v and 500mA at 12v, and contains all the usual power protection circuitry. A pretty decent board.
The LattePanda Delta was a successful Kickstarter a while back. DFRobot are now putting this up as a pre-order. The US$168 version runs the 2.4GHz quad-core Intel N4100 CPU, with 4G DDR4 RAM, 32G eMMC, two M.2 key slots, GbE, WiFi, Bluetooth, 3 USB3.0, 100 GPIOs, yes 100 GPIOs, and 4K/60Hz capable HDMI and DisplayPort outputs.
Really, bang for your buck is pretty good with this little baby.
There’s also the LattePanda Alpha 8G, which is more of a powerhouse running an Intel i7, with 8G DDR3 RAM and all the same GPIOs as the Delta.
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