Turning the battery power off
Posted: Sun Dec 02, 2018 5:22 am
Hi,
I have purchased and constructed the DSO 138mini Oscilloscope DIY Kit.
and fitted the mini 118 BATTERY CHARGER WITH SWITCH CARD.BOB1 PN:109-11802-00A
Then plugged in a USB power plug. The oscilloscope powered up and worked fine.
and displayed a nice square wave on the screen.
Then I removed the USB plug and Plugged in a new 3.7v Battery into the
battery socket and again the unit worked fine.
Problem.is I cannot turn the oscilloscope off with either the USB plug or the battery installed. Cannot leave
the battery on forever!
No ON/OFF switch is fitted.
The MODE switch SW4 sets the battery charge mode I think. Does not turn off battery or USB power?
If the scope runs on battery power, how do we turn off the battery power when the scope is not in use?
If the turn off is a "sleep mode" button command which is a button combination,
What is the button combination to put the processor in sleep mode?
Can find nothing on this.
The main processor is a STM32F103C8 chip which seems to be fairly common, cannot find a list of commands.
Any thoughts!
mgraphic
I have purchased and constructed the DSO 138mini Oscilloscope DIY Kit.
and fitted the mini 118 BATTERY CHARGER WITH SWITCH CARD.BOB1 PN:109-11802-00A
Then plugged in a USB power plug. The oscilloscope powered up and worked fine.
and displayed a nice square wave on the screen.
Then I removed the USB plug and Plugged in a new 3.7v Battery into the
battery socket and again the unit worked fine.
Problem.is I cannot turn the oscilloscope off with either the USB plug or the battery installed. Cannot leave
the battery on forever!
No ON/OFF switch is fitted.
The MODE switch SW4 sets the battery charge mode I think. Does not turn off battery or USB power?
If the scope runs on battery power, how do we turn off the battery power when the scope is not in use?
If the turn off is a "sleep mode" button command which is a button combination,
What is the button combination to put the processor in sleep mode?
Can find nothing on this.
The main processor is a STM32F103C8 chip which seems to be fairly common, cannot find a list of commands.
Any thoughts!
mgraphic