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David

a chemical and process engineer working in the field of electronics design and embedded development

Iceland
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david
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This user joined on 04/29/2023.

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Ultra low cost amplifier circuit for pH sensor and 3.3V Microcontrollers
Project Owner Contributor

ultra low cost pH amplifier circuit for 3.3V MCU's

davidDavid

Things I've Built

EVSE charger for my car

https://forum.arduino.cc/t/evse-charger-miev-leaf-tesla-6-16a-esp32/878422

16.9k
1.2k
24
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Raspberry Pi Compute Module 4 carrier that plugs directly to HDMI port.
Project Owner Contributor

Raspberry Pi CM4 TV Stick

mbsmbs

14.7k
702
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4
Bluetooth transmitters are different and highly integrated modules. Here is the info, to use and select proper module for different purpose.
Project Owner Contributor

Bluetooth Transmitter – Chipset, Power, Datasheet

sagar-001Sagar 001

8.8k
2.2k
23
78
Two hearts are better than one, so why not have five. Quadcore RPI CM4 and a MCU on a single board for true all-in-one 3D printer control.
Project Owner Contributor

Sigmoid S7P 3D Printer Control Board

pkelectronicspkElectronics

2.8k
517
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30
This rig doesn't require bolting to the ceiling or wall. Works with my VR shoes to keep the user in the same spot as they walk in VR.
Project Owner Contributor

Free Standing VR Support Rig

finallyfunctionalfinallyfunctional

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7
Controlling modern hardware in style.
Project Owner Contributor

Retro home automation controller

rick-pannenRick Pannen

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A scale model of the Italian COSMO-SkyMed satellite brought to life with the addition of a small flashing light.
Project Owner Contributor

Flashing satellite model

andrea-consoleAndrea Console

729
355
0
10
Comprehensive Peripheral Cluster On-A-Stick
Project Owner Contributor

CPC Cyber Cepter

sp4mSp4m

670
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3
Two 555 timers and oscilloscope X-Y mode to generate animated art
Project Owner Contributor

Oscilloscope Art using 555 Timers

ted-friedTed Fried

648
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2
Radio works quite correctly on FM and also on the AM band, certainly not expecting any great quality
Project Owner Contributor

DIY 3$ kit CF210SP AM,FM Stereo Radio

mircemkmircemk

559
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1
Silence the speaker in the Owlet Smart/Dream Sock base station
Project Owner Contributor

Hush Owlet

mikeMike

543
599
0
8
ISP and UPDI Combo Programmer for AVR Microcontrollers
Project Owner Contributor

CH552 picoAVR ISP+UPDI Programmer

stefan-wagnerStefan Wagner

520
522
0
4
Single chip biopotential amplifier.
Project Owner Contributor

BioAmp v1.5

deepak-khatriDeepak Khatri

494
489
0
1
ESP32Cam based with PIR, Doppler, Temperature and Buzzer sensors
Project Owner Contributor

Multi-purpose Security Node with multiple sensors

basBas

384
228
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Retro clock with seven segment display, WDC65C02 microprocessor and SP0256 voice synthesis chip.
Project Owner Contributor

Talking clock

marek-wicekMarek Więcek

349
318
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3
Make IoT-based Home Automation using ESP32 Blynk with the Fan Speed control, sensor, and IR remote control relay with real-time feedback.
Project Owner Contributor

ESP32 Blynk IoT Project with Fan Speed Control

subhajitSubhajit

204
209
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3
Lifetime Battery For Any Clock
Project Owner Contributor

Lifetime Battery For Any Clock

utsourceproductutsourceproduct

165
165
0
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Bringing old Lubitel cameras back to life
Project Owner Contributor

LR Camera

vladimir-gorsheninVladimir Gorshenin

110
123
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Visualize audio using an LM3914
Project Owner Contributor

Audio Visualizer

jim-heaneyJim Heaney

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