Opamp circuits:Repressilator: The repressilator is a genetic oscillator (3). Here we build an electronic approximation of the repressilator. Gene expression is represented by the output of opamps U2, U3 and U5 below. Protein concentration is represented...
First of all, to obtain weekly comics release lists from the ShortBoxed comics API, I developed a web application in PHP running on Raspberry Pi. Then, I used an Arduino Nano 33 IoT to get comics release lists transferred by the PHP web application and...
PROJECT PUBLISHED HERE: https://hackaday.io/project/19221-ir-light-dimmer-v2-1kb-challenge-editionFound capacitive power supply and triac triggering ideas here:http://www.st.com/content/ccc/resource/technical/document/application_note/a8/00/35/e2/62/e5/4c/14/CD00266635.pdf/files/CD00266635.pdf/jcr:content/translations/en.CD00266635.pdf...
UPDATE 02/11/2017Previously mentioned bugs pertained to lots of noise while playing video streams. This was almost completely resolved by slowing down SPI to 8Mhz and increasing frame rate to 40. Another final part may be driving 5v SPI leds with a 3.3v...
New year, new hacks I've decided to finally have a go at the bulky thermometer with nixie displays that's been languishing in my cupboard. I bought it at the same surplus shop where my #Restoring a Beckman neon display clock came from. The box is quite...
Hardware:The hardware is not very complexe if you're familiar with Raspberry Pi. The screen is a recycled one from office, a standard 19" DVI. The resolution is 1280x1024. It's rotated in portrait mode.The printer is an Epson TM-T20II, connected to the...
As you can see from the picture of the testbench for this project, it is buillt in several smaller blocks. I have been building small circuits for a while, as a chance to play with them and learn about better PCB layout techniques. This also results...
This board is part of Fyber Labs Flex Module project.Biopotential signals are low frequency small voltage output that need very clean power and low cross-talk routing.Example signal types(source): EEG:Surface 5 mV 200HzScalp 300uV 100HzEMG:On skin 10...
The delta uses KF-m 3 airfoil and it is optimized to fly slow while carrying a payload. It flights for 40 minutes with 2 2200mAh LiPo batteries. A video of the delta flying.I got a lot of help in the RCGroups forum and now I need to create a thread for...
All events take place in the #Hack Chat, join us there. Curious about the black magic that goes into RF? This #RFChat is for anyone who has ever designed or considered designing something that talks on RF. Come hang out for 30 or so minutes and talk...
The effect circuit works this way: A high input impedance buffer amp (T1, T2) receives the signal, which is then split in two ways: it is fed directly to one of the inputs of the mixer amp (IC1-A), and is fed into a high-pass Sallen-Key filter (T3),...
Tulip consists of 6 petals each with 5 SMD white LEDs. Each petal is connected with one of the Arduino output pins. Blossom hides 7 NeoPixel RGB LEDs. From an electrical point of view, the whole flower is ground and veins in petals are a positive voltage....
Introduction In this project, we are going to make a simple lipo battery charger using TP4056 module with battery protection. The circuit that charges the battery by supplying the charge carrier (i.e-electrons) to it is battery charger circuit....
1. Cel: Celem pracy jest wykonanie projektu urządzenia mechatronicznego lub kluczowego elementu urządzenia mechatronicznego, zbudowanego na bazie podzespołów LEGO oraz przeprowadzenie procesu projektowego zgodnego z rzeczywiście używanym...
Techniques ReviewWe are going to consider only time series analysis in this section. There are reviews of "complexity measures" (Feldman and Crutchfield 1998, Daw, et.al. 2002). Kuusela, et.al. (2002) compare the results of ten different complexity measures...