The incandescent bulb consists of a filament within a glass casing which is filled with inert gas. When current is passed through the filament, which connects to its metal base, the filament glows and emits light.
Small bulbs have generally been superseded by LEDs as those draw lower currents and are easier to control using a PICAXE.
Higher power bulbs are increasingly being replaced by higher power LEDs.
The following program will activate a FET or Darlington transistor connected to output B.1, which in turn will light the lamp, for a second every five seconds.
main: high B.1 ; Switch on output B.1 pause 1000 ; Wait 1 second low B.1 ; Switch off output B.1 pause 5000 ; Wait 5 seconds goto main ; Loop back to startCopy Code Submit an Example
A 4.5V bulb may be connected via the BCX38C darlington transistor create module (buzzer shown here).
| Description | Code | Qty | |
|---|---|---|---|
| Bulb | ? | 1 | Buy Now |
| Bulb holder | ? | 1 | Buy Now |
| BCX38C Darlington driver transistor | TRT002 | 1 | Buy Now |
| 1k resistor (pack 100) | RES1K | 1 | Buy Now |
| 1N4001 Diode | RES041 | 1 | Buy Now |
You must be logged in to submit code examples. Login now.
Share