A lot has happened while I was on holidays over the last two weeks. So I’ve split up my regular roundup into two to avoid people falling asleep half way through. This video contains all the crowd funding products.
Tindie has been fairly busy while I’ve been away on holidays.
And just had to add this one in as I’m a drummer. It’s an Arduino Nano shield that drives 5V RGB LED strips and on-board Piezo. So, you can activate the LEDs in sync with your drums. Nice addition to an acoustic kit.
This is a fairly cheap ESP8266 PCB with on-board RFM95 LoRa module and LiPo battery management. You’ll still have to buy your own LoRa module and ESP8266, but a cheap option if you want a DIY LoRa to WiFi gateway.
There seems to be a few of these test PCBs on Tindie. This small board is an 8 channel voltage logger with sampling rates from 500nS to 5 seconds. Runs off a 5 to 20 volt DC supply with input channel voltage from 0 to 3.3 volts only.
One of the problems with a lot of the LoRa modules is the fact that they have a 2mm pad pitch. For prototyping you’ll need an adapter board or you can get one of these modules that have been soldered up for you.
Do you need to add wireless to your Teensy project? This board will accept any of the Teensy version below 3.2 and provide WiFi, Bluetooth and nRF24L01 connectivity. It also has 5v and 3.3 volt regulators and can be powered from a 6.5 to 16V DC supply.
Another Hat for your Pi Zero, although can be used on any Pi. This one allows you to solder up a LoRa module and OLED display. The only thing missing is LiPo battery management which would have extended the number of applications.
AdaFruit, Seeed, SparkFun, DFRobot, DigiKey
I’m sure AdaFruit have had this for a while, but anyway. This is the Feather 32u4 which contains, of course, and ATmega32U4, LiPo battery management and an nRF51822 Bluetooth module. These feather modules have been a great idea from AdaFruit. They give you a common set of features and pinouts but have a whole lot of different MCU and wireless options.
The Arduino Tian is a board that contains a CortexM0+ SAMD21 MCU, WiFi module and a Qualcomm AR9342 MIPS processor with 4G eMMC and 64M DDR2 RAM. This is the type of board you’d use in an IoT gateway as it has Bluetooth, WiFi, Ethernet and capable of running OpenWRT.
The Cheap Side
Over in China …
and this laser dust sensor seems to have a slightly faster acquisition time than the previous model I bought. It’s still a little slow at 1s response time, but can measure down to 0.3 micron particle size. Wow!
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