Smart Smartykat Toy
Modifying the SmartyKat Crazy Cruiser to be smarter about battery consumption.
Read More Smart Smartykat ToyCategory: Electronics
Modifying A Boot Dryer
A simple circuit to add auto off capability to a boot dryer or any low power device.
Read More Modifying A Boot DryerManual Pick and Place SMD Vacuum
Foot pedal operated SMD Vacuum for manual placement of components. This upgrade from tweezers makes manipulating SMD components easy during manual PCB assembly.
Read More Manual Pick and Place SMD VacuumSAMC21 Development using Visual Studio Code
A template for getting started with the SAMC21 and Visual Studio Code.
Read More SAMC21 Development using Visual Studio CodeCR2032 Simulator
In this low effort post I briefly describe what a CR2032 Simulator is an how to make one.
Read More CR2032 Simulator18650 Battery Shield Keep Alive Circuit
A simple analog circuit used to keep the 5V rail of a battery shield active when there is zero load.
Read More 18650 Battery Shield Keep Alive CircuitMatrix Technology MPM-1010 Digital Power Meter
A quick review of the Matrix MPM-1010 digital power meter, a benchtop version of the Kill A Watt.
Read More Matrix Technology MPM-1010 Digital Power MeterKeithley 17x USB Adapter
The following device is used to connect the Keithley 177 and 179 digital multimeter to the PC. The USB Adapter is a serial COM port enabling the user to use simple serial terminal programs to read data from the Keithley multimeter. The device fully isolates the PC from the multimeter through optoisolators and has no impact on the meters performance. The Keithley 17x USB Adapter is a simple device for connecting two great multimeters to the PC to further increase their value to hobbyists by enabling data logging.
Read More Keithley 17x USB AdapterBenchtop DMM Keithley 177 and Keithley 179 Repair
I picked up two used Keithley benchtop digital multimeters from eBay that are in need of repairs. They were sold as working but as is often the case with eBay sellers who are unfamiliar with measurement equipment, they both have some issues that I intend to fix in this short article.
Read More Benchtop DMM Keithley 177 and Keithley 179 RepairBase Convert Rev A
Introduction Base Convert PL-47710 Rev. A is a simple desk/handheld device to convert between hexadecimal, decimal, and binary. The unit features separate displays for each number base for easy comparison between the three bases. User input is possible using 16 alphanumeric keys and an input mode selector switch. The device is powered by 4 AA […]
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SD Perry 