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App note: Battery Fuel Gauging LSI [Smart LiB Gauge] for 1-Cell...
App note from ON Semiconductor on their Smart Fuel gauge LC709204F. Link here (PDF) LC709204F is a Fuel Gauge for 1−Cell Lithium−ion/ Polymer batteries. It is a part of our Smart LiB Gauge family of...
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Touch display with RGB silicone buttons for Bus Pirate Ultra
This is the prototype display board for the next, and possibly final, revision of Bus Pirate “Ultra” v1. We went a bit wild, but we’re thrilled at the possibilities: 2.8″ IPS LCD with capacitive touch...
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Experimental Zener diode tester
Dilshan has published a new build: Automatic Zener diode tester is capable of identifying Zener diodes up to 27.5V. Apart from that, it can be used to recognize leads of the diodes/Zeners and detect...
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Building a chaotic oscillator from common components
Tim blogged about his chaotic oscillator build: A chaotic oscillator is an electronic circuit that can exhibit “chaotic“, nonperiodic behavior. A commonly cited example is Chua’s circuit, but there...
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Cloning the ET-3404 6809 adapter for the Heathkit ET-3400
Dr. Scott Baker made the ET-3404 6809 adapter clone: I’ve become somewhat of a Heathkit ET-3400 enthusiast lately, after building my ETA-3400 memory/io clone. I decided to also clone the ET-3404,...
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App note: Power MOSFET continuous drain current rating and bonding wire...
App note from Alpha & Omega Semiconductor about current limitations on MOSFETs with exposed pads. Link here (PDF) Power MOSFET datasheets will usually show maximum values for continuous drain...
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App note: Using the Si72xx hall-effect magnetic position sensors
App note from Silicon Labs on their hall-effect Si72xx magnetic sensor to sense position, count revolution and security system seal tamper sensing. Link here (PDF) These devices all measure magnetic...
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App note: Simple guide to improving ripple rejection ratio of LDO regulators
App note from Toshiba on improving LDO regulators PSRR. Link here (PDF) This document explains the principles of suppressing ripple of the output voltage, which is caused by the ripple of the input ,...
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App note: Driving vibration motors with pulse width modulation
App note from Precision Microdrives teaching you ways to drive vibration motors. Link here Using a PWM signal to drive vibration motors can enable high-performance vibration control with relative...
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Bus Pirate 5 is here!
Bus Pirate 5 is the latest version of the multi-tool hackers trust since 2018. RP2040-based, color LCD, 1-5volt power supply and IO buffers, and more! Firmware, hardware and a fresh new forum are...
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