This Instructable is a standalone follow on to my recent Think-a-Tron 2020 project. You can see a picture of my Think-a-Tron “family” including the original, 2020, and Mini versions above. For the background on what Think-a-Tron is and what I tried to accomplish with Think-a-Tron 2020, I encourage you to check out the Think-a-Tron 2020 Instructable. My …
The miniSpartan3 is our new, low cost, tiny, FPGA kit. It starts at just $29, and there is a more powerful FPGA chip available for $39. Features: The Spartan 3A XC3A50 FPGA ($29), or the Spartan 3A XC3A200 FPGA ($39) from Xilinx. An on-board USB JTAG Programmer to power and program your FPGA. An on board USB to Serial …
Extremely cheap low-speed PC/USB oscilloscope with STM32 (STM32F042) microcontroller – variant of miniscope v2e with input amplifier (MCP6S21 PGA) added. This is minor update, but input PGA fixes problem with input leakage of STM32F042 allowing increasing input impedance at the same time. Quick specification follows miniscope v2a-d idea: very simple device streaming data in real …
While I waited for the Mini 7-Segment Clock v3 PCBs to arrive, I got to work on designing an enclosure. First, I exported the PCB from EAGLE to SketchUp. I then assembled a complete 3D model with all the necessary components. With the 3D model complete, I could then design an enclosure to house the …
In this project, we will be making a mini weather station that measures temperature and humidity and transmits them wirelessly to a ground station, which displays the readings on an LCD display! It’s a fairly easy project and can be used either on its own or part of something bigger. For this project, we will …
Description The Mini Audio Amplifier project is a good choice for battery operated gadgets. It is based on Texas instruments LM386 IC, provides high quality Audio. Specifications Wide power supply input 6 to 12 VDC 500 mW output @ 8 Ohms load Takes standard audio signal as input Low quiescent current drain 4 mA IC …
Extremely cheap low-speed PC/USB oscilloscope with STM32 (STM32F042) microcontroller. Quick specification follows miniscope v2a-d idea: very simple device streaming data in real time to PC; DLL and GUI (Win32) are handling all the functionality, sampling: 480 kSps, 8 bit, single voltage range, streaming via USB FS with libusb (32/64bit) used as driver, record length: 4k …
You’ll need these: HC-SR04 – Get this ultrasonic sensor from eBay.com.au for $2. SG90 Servo Motor – We’ve seen this servo selling for around $4 on ebay. Motor drive shield – You can get this expansion board for $5 online. If you’re new to APC we’ve been spending the last few months of this Masterclass …
In a recent instructable Indigod0g described a mini weather station that works pretty well, using two Arduinos. Maybe not everyone wants to sacrifice 2 Arduinos to get humidity and temperature readings and I commented that it should be possible to do a similar function with two Attiny85’s. I guess talk is easy, so I better …
Quin Etnyre has been into all things Arduino since he was a kid. He already has 28 Instructables published, founded his own company called Qtechknow in 2012 which sells ArduSensors and a line of fun and educational kits and oh, he is still just 14 years old. His latest Arduino-based design is the Qduino Mini …
