I aquired a cheap Hubsan Drone (H216A, X4 Desire) and wanted to know if its possible to control it without their app. The Drone opens a WiFi where you can connect your phone to controll it via an App. Using Bluestack & Wireshark I got some information...
(Duplicate of a HAD blog post, placed here for posterity.) Here's some things to try that might help depression. Firstly: there's a direct correlation between poor sleep and depression, but no one knows whether depression causes sleep disturbance or...
Does anyone sell a hobby friendly module that uses those small older mobile phone quality sensors and with a controller board that encompasses the decoding / recording to microSD / control buttons / LiPo charger? I've re-purposed the ones that come in...
A little writeup I did on getting the aforementioned hardware running in my AM8, as I thought the existing documentation on the subject was a bit suboptimal.
For this project https://hackaday.io/project/166703-bbq-thermostat/ I changed hardware to the Feather S2 (https://feathers2.io/) with the Qwiic MCP9600 Thermocouple (https://www.sparkfun.com/products/16294). I wanted to be able to switch from Arduino...
Hoping a real chemist can sniff-test this: * This legit-seeming 2018 paper says some alchemical conjuration from coconut oil is The Most Amazing Bug Repellent: "Better than DEET Repellent Compounds Derived from Coconut Oil" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6145915/...
Is there a standard (de-facto or otherwise) for managing a device via Bluetooth? Something where simple configuration could be done without a program/app specific to each device/manufacturer? An protocol where a server device provides a list of configuration...
I'm trying to divide eg single digit MHz clock by an almost arbitrary (non-power-of-2) integer and convert it to logic level pulses in the range of around 1-100 Hz. I'd like to minimise the phase lag of the rising pulse with respect to the input signal....
I'm trying to find a modest CNC machine that can drill a copper-plated PCB. This would hopefully be an alternative to using chemicals to etching the copper traces from the PCB.This will help me move from wire-wrap construction to PCBs.Ideally,...
I'm working on a project for a USB HID device. Internally it has any number of 5V IC's. I really, *really* would like to use a Teensy 3.5 for this ... but they're sold out everywhere. Please, if you've moved on to Teensy 4.x but still have one lying...
I have an idea for a new contest. Build apparatuses that once won the Nobel Prize in physics. For instance, an X-ray tube, Wilson cloud chamber, Geiger counter, transistor, or a scanning tunneling microscope. The winner will receive a 3D-printed gold...
Has anyone found a hack for this dumb problem. The SG90 comes with a splined nylon shaft (od 4.7mm). These make a precision fit with the actuating horns. If you want to fit a gear, you need a 5mm id shaft (say) A bodger might just use a connecting...
I'm building a tabletop claw machine game with some middle schoolers. It's arduino-based and using gantry parts and nema 17 steppers from an Ender 3. We're stuck with a question about the weight of the claw, we want to also use a nema 17...