ELM303P データシートの表示（PDF） - Elm Electronics

部品番号

コンポーネント説明

メーカー

ELM303P

Camcorder Time–Lapse Control

Elm Electronics 

Functional Block Diagram

The operation of the ELM303 can best be

described through the following block diagram. All

of the main functions are shown, while initialization,

timekeeping, etc. are implied. The power on and off

delays are internally set, and are not adjustable.

Note that on powerup, and after responding to

a ‘000’ interval code, the circuit always initiates a

record cycle after one minute. This allows the

operator to verify that the system is operating

properly.

Loop

wait for timeout

or I=’000’

Save the state

of all pins

Pulse Power

for 200msec

wait 10 sec

yes

no

send 0x1833 to

the camcorder

Is

I=’000’

?

wait 5 sec

Pulse Power

for 200msec

Go to PowerUp

no Control L

bus active

?

yes

send 0x1833 to

the camcorder

if D0=0, wait 1s

else wait 10s

yes

Was

I=’000’

?

no

send 0x1833 to

the camcorder

wait 5 sec

Pulse Power

for 200msec

Go to Loop

ELM303DSA

Elm Electronics – Circuits for the Hobbyist

< http://www.elmelectronics.com/ >

ELM303

PowerUp

wait 1 minute

4 of 5

Share Link: