Old Time Traffic Signal Revived with a Raspberry Pi Controller – Hackaday

Hackaday Old Time Traffic Signal Revived with a Raspberry Pi Controller Hackaday With two signals, everything was doubled, so the new controller used a 16-channel relay board and a Raspberry Pi to run through various demos. To keep induced currents from wreaking havoc, zero-crossing solid state relays were used on the big AC motors …

Continued here:
Old Time Traffic Signal Revived with a Raspberry Pi Controller – Hackaday

Share

Parse error: syntax error, unexpected 'new' (T_NEW) in /homepages/2/d253654631/htdocs/crazy4pi/wp-content/plugins/autoblogged/simplepie.php on line 720

Warning: Use of undefined constant PEAR_LOG_WARNING - assumed 'PEAR_LOG_WARNING' (this will throw an Error in a future version of PHP) in /homepages/2/d253654631/htdocs/crazy4pi/wp-content/plugins/autoblogged/autoblogged.php on line 186

Parse error: syntax error, unexpected 'new' (T_NEW) in /homepages/2/d253654631/htdocs/crazy4pi/wp-content/plugins/autoblogged/Log.php on line 168

Fatal error: Exception thrown without a stack frame in Unknown on line 0