jbarchuk:
yashiharu:
i just bought some stuff, and problem found:
- motor shield: input 5v-12v (max. 24v) 2A; output 12v 1A
- water pump(RS-360SH): 3.3v - 6v 1.8A
The seller just told me:
do not run both two water pumps together!
do not run the water pumps for long!
What could i do to make 2 pumps working together?
Please adviseUse two motor shields, one for each pump. You can improve the situation much further by 'paralleling' the outputs on each shield and use both channels to drive one pump. That give you 4A worth of drive which is lots more headroom.
In this doc see page 7/13 "Figure 7 : For higher currents, outputs can be paralleled. Take care to parallel channel 1 with channel 4 and channel 2 with channel 3"
http://www.st.com/web/en/resource/technical/document/datasheet/CD00000240.pdf
should i go for a relay module (24v 10A)?
it seems easier & better, even for future study ...