DTMF 4 RELAY CONTROL OVER UTP WIRES
By: Don McClatchie When you have an installation that requires remote control of a gate, light, or other equipment and you only have one relay to operate you can use Direct Current (DC) or Alternating Current
Author: Don McClatchie
AR1010 Pic Basic Program for FM Radio
By: Don McClatchie This is for those who have been trying to make an AR1010 sub-board work using PIC BASIC Pro and a Pic Microcontroller. I was not able to find any examples of BASIC programming for this neat little radio sub-board using the AR1010 from
VIDEO LOW PASS FILTER DESIGN TABLE
By: Don McClatchie Video low pass filters are useful to reduce noise for analog video signals and as anti-aliasing for analog to digital equipment designs. When used in analog noise reduction designs the cut-off frequency is set just above the highest useful frequency in the
HOW TO ADD CONTROL RELAYS TO HD VIDEO
By: Don McClatchie How to add control relays to HD Video is a question that I get from time to time. The new analog HD-Video cameras referred to as AHD, TVI, and CVI are being installed in greater quantities because they can provide the needed High
OPEN CIRCUIT BATTERY MEASUREMENT TABLE
By: Don McClatchie Measuring battery State of Charge can be a tricky business especially if the battery is in service connected to a source or drain of current. I am sure that many of you have measured a battery and found the voltage to be
PHYSICAL LAYER DRY CONTACT TCP/IP SWITCHING
Dry contact relay switching solves problems with TCP/IP connections.
SERIAL & PARALLEL DATA CONNECTOR PIN-OUTS
SERIAL & PARRALLEL DATA CONNECTOR PIN-OUTS WIRING
HAZARDOUS MATERIAL HANDLING TRUCK SURVEILLANCE
Adding video cameras to truck trailers using existing wiring.
THE NRF24L01+ PICBASIC & PIC MICRO-CONTROLLERS
Use the NRF24L01+ wireless transmitter / receiver with pic micro-controllers and PICBASIC