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D. Smith

Embedded systems hardware and firmware designer (asm, C, CircuitPython) that likes to dabble in desktop (Python, Java) and web (Flask, html, javascript, css).

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This user joined on 12/03/2023.

My Projects

This project attempts to replicate the beauty and ambience created by a Mason jar of fireflies.

Virtual Jar of Fireflies

d-smith D. Smith

Things I've Built

Hello Pi: A Program to Find the IP Address of Headless RPi

Program to easily find the IP address of a Raspberry Pi (RPi) (or other device) added to the same DHCP-configured local area network (LAN). Great for headless RPi setups-no monitor/keyboard needs to be attached to find its IP addy. On my github.

SCUBA Nitrox Analyzer

This is a device to measure and report the percentage oxygen in a Nitrox (enriched air) SCUBA tank. http://www.nano-micro.gr/scuba_diving_archive/Smith-174.pdf

DiveMate SCUBA Dive Datalogger

I designed a custom SCUBA diving data logger. It displayed and measured depth, water temp, and dive time. Post-dive, the data was uploaded and graphed on a PC. https://ww1.microchip.com/downloads/en/DeviceDoc/at90s4433_3_04.pdf

Projects I Like & Follow

Hackaday Prize 2019

It's cheap, doesn't use a specialized heart rate AFE and can blink LEDs with your pulse :)

uECG - small open source wireless ECG sensor

ultimate-robotics Ultimate Robotics

The GGreg20_V3 Ionizing Radiation Detector is a new-generation ready-to-use device with an SBM-20 Geiger tube and pulse counting output

GGreg20_V3 Ionizing Radiation Detector

iot-devices-llc IoT-devices, LLC

A programming-ready IoT controller board with graphic display and RGB LED & pinned-out interfaces for sensors and actuators.

ESP12.OLED - universal ESP8266+0.96"OLED MCU board

iot-devices-llc IoT-devices, LLC

Production of cool Geiger counter souvenirs while removing faulty GM-tubes from the market. Donating half of the project's profits to AFU

GGreg20_ES - Souvenir Geiger Counter

iot-devices-llc IoT-devices, LLC

The uninterruptible power supply module with battery charging and protection, for building smart devices with power paths' redundancy

PS4IoT_V1 Smart Power Supply Unit Module

iot-devices-llc IoT-devices, LLC

I2CUI4_V1 - user interface 5-key keypad module incl. RGB LED and Buzzer with I2C interface for on premise IoT device management

I2CUI4_V1 - User Interface I2C keypad with 5-keys

iot-devices-llc IoT-devices, LLC

GCemu20_V1 Ionizing Radiation Detector Emulator is a ready-to-use device for emulation of a Geiger radiation sensor with a GM tube.

GCemu20_V1 Geiger counter emulator

iot-devices-llc IoT-devices, LLC

Bits

IoT-devices, LLC wrote 12/08/2023 at 12:50

Thank you! Your support is very important to all of us! We feel it and appreciate it!

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IoT-devices, LLC wrote 12/07/2023 at 21:58

Thank you for your interest in @IoT-devices, LLC and for following our projects, especially the #GGreg20_V3 Ionizing Radiation Detector! Also please see at our new charitable project #GGreg20_ES - Souvenir Geiger Counter !

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D. Smith wrote 12/08/2023 at 03:57

You have designed some very cool devices! Thank you for looking at and liking my project. Best wishes to everyone in Kyiv!

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