Feed on
Posts
Comments

Category Archive for 'Learning Electronics'

DS1307 is an old and classic real-time clock (RTC) chip that has been used in many electronic circuits. There are also many libraries written for DS1307, notably this Arduino Time library which includes a DS1307RTC class. Given its age and popularity, it’s surprising that the chip is not cheap: even at volume pricing, it usually […]

Read Full Post »

Updates Click here to see NeoDen 4 Pick and Place Machine with Vision System. This is Part 2 of the NeoDen TM-240A pick and place machine demo. Today I placed the machine on a proper table downstairs in the basement, and had my first-hand results of a production run — namely using the pick and […]

Read Full Post »

Updates Click here to see NeoDen 4 Pick and Place Machine with Vision System. Click here to see Part 2 of the TM-240A video. Yes, there have been lots of new updates recently. Among them is a new toy I received in the mail today: a NeoDen TM-240A automatic desktop pick and place machine! I’ve […]

Read Full Post »

Voltage conversion from 24VAC to 5VDC is quite useful, because a lot of home automation devices use 24VAC, including sprinkler solenoids, home surveillance systems etc. Having a conversion module makes it easy to use a single power supply, without a separate 5V adapter for your control circuit. There are plenty of resources you can find […]

Read Full Post »

During the process of cleaning up my workshop today, I collected all the OpenSprinkler prototype boards that have had design mistakes or were built and failed in the past, and looks at this whole box of lovely PCBs: Probably no less than 30 boards in the box. It’s quite shocking to realize how many there […]

Read Full Post »

« Newer Posts - Older Posts »