Difference between revisions of "Project:Traffic Lights"
Jump to navigation
Jump to search
(→Bulbs) |
(→Wiring) |
||
| Line 23: | Line 23: | ||
The traffic light is powered from 90-250v AC (50/60Hz). The controller contains an AC-DC convertor to bring it down to the 3.3V required by the ESP8285. The 4 relays output mains voltage, which is then dropped down to ~12v AC by an individual transformer ''per bulb''. | The traffic light is powered from 90-250v AC (50/60Hz). The controller contains an AC-DC convertor to bring it down to the 3.3V required by the ESP8285. The 4 relays output mains voltage, which is then dropped down to ~12v AC by an individual transformer ''per bulb''. | ||
| + | |||
| + | ====Lamp to GPIO mapping==== | ||
| + | {| class="wikitable" | ||
| + | ! style="font-weight:bold; background-color:#ffffff;" | Function | ||
| + | ! style="font-weight:bold; background-color:#ffffff;" | GPIO Pin | ||
| + | |- | ||
| + | | style="background-color:#ffffff;" | Red Lamp | ||
| + | | style="background-color:#ffffff;" | IO12 | ||
| + | |- | ||
| + | | style="background-color:#ffffff;" | Amber Lamp | ||
| + | | style="background-color:#ffffff;" | IO5 | ||
| + | |- | ||
| + | | style="background-color:#ffffff;" | Green Lamp | ||
| + | | style="background-color:#ffffff;" | IO4 | ||
| + | |} | ||
=== Bulbs === | === Bulbs === | ||