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leumasyerrp

Mechanical Engineer who dabbles in electronics as a hobby

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This user joined on 12/06/2016.

My Projects

The 2018 Hackaday Prize

Simple desk/handheld calculator to convert between hexadecimal, decimal, and binary.

Base Convert

Foot pedal operated SMD Vacuum for manual placement of components. This upgrade from tweezers simplifies SMD placement during PCB assembly.

Manual Pick and Place SMD Vacuum

Repair of a Mantis microscope using 3D printing

Mantis Microscope Repair

Making the SmartyKat Crazy Cruiser smart to lower battery usage.

Smart SmartyKat Toy

Projects I Like & Follow

Follow for the 'Hacklet' and latest news about hackaday.io

Hackaday.io Project

7 segment clock

EPTAORA

ekaggrat-singh-kalsi ekaggrat singh kalsi

Follow this project to learn how to use FPGAs and incorporate them into your projects.

The Hobbyists Guide to FPGAs

luke-valenty Luke Valenty

A tiny homemade radio telescope I built which can take pictures IN RADIO... i guess i was just bored

Tiny Radio Telescope

gonalo-nespral Gonçalo Nespral

A LISP-programmable laptop with battery life measured in years

PotatoP

andreas-eriksen Andreas Eriksen

2021 Hackaday Prize

Response to Hackaday comments section: a 555 timer in Arduino form factor

Trollduino V1.0

mild-lee-interested Mild Lee Interested

Mouse Whisperer is a small development kit that is based on ATtiny85. It will act like a physical mouse and draw circles when you're away

Mouse whisperer

andriymalyshenko andriy.malyshenko

Supplyframe DesignLab: 2023 Hackada…

Flea-Scope™ is a very low-cost ($18 at Elecrow) and easy-to-use 18 Msps USB oscilloscope and mixed-signal logic analyzer.

Flea-Scope USB Oscilloscope ($18, 18 Msps, WebUSB)

richard-testardi Richard Testardi

Supplyframe DesignLab: 2022 Hackada…

Grow vegetables with ultraponics tower

UltraTower

j-gleyzes J Gleyzes

<1.5µA current consumption when continuously on, optional flashing mode

Ultra low power LED

christoph-tack Christoph Tack

4Ch Input & 2Ch Output 1MSps STM32 based oscilloscope

STM32G4 Scope

Making the most of non-ideal components in a non-ideal world.

Multislope ADC

A SCPI programmable precision resistor

Programmable Precision Resistor

A 1980s style 8-bit computer running BASIC. Includes OLED screen and a QWERTY keyboard. Oh, and the whole thing fits in an Altoids tin.

eMBee ONE pocket computer

matthew-begg Matthew Begg

Teensy 4.1 based 5 Axis, Ethernet CNC controller running grblHAL.

Teensy 4.1 CNC Controller

Supplyframe DesignLab: 2023 Hackada…

Differential scope probe

PD150

3D Print yourself some of these magazines to keep your shop organized and boost your pick and place productivity!

SMD Component Magazines

robin-reiter Robin Reiter

A marker pen sized Geiger counter with up to 12 months battery life from 2xLR44, based on STM8L152K4 microcontroller

Compact, low-power Geiger counter

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Bits

Mitsuru Yamada wrote 05/23/2023 at 05:46

Thank you for liking and following my #CMOS Homemade Operational Amplifier ! I did the re-test yesterday and revised the bias current estimates described in the article.

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