correct, its made for the original DMG application. based off the specs for the DMG's power regulator board, and utilizes power switch cover (which it illuminates). those power considerations do not apply here really. its for the original DMG Game Boy, as-is, not the GBZ application which apart from the shape is much, much different internally.Ganreizu wrote:Yeah i'm not sure if batt_dmg is appropriate for GBZ build. Just kind of bought it for the hell of it so if it worked great if not oh well. Looking like it won't work at all since it's connected to the original circuitry and is based on the batteries it's supposed to run from. Got this quote from the installation doc:Helder wrote:That's a bit pricey and not sure what the IC draws but I know this circuit (the boards in first post) draws 1.5mA to function and go as low as 1.4v for the threshold sensor but obviously we don't need that as that is way too low.
if you replace the LED with your own, assume the forward voltage to be 4.6V @ 20mA (the IC will not connect the circuit until engaged at 4.6V). use this for your calculations. the resistor is 0603 package. the included red LED is rated at 2.5V @ 20mAthe light will illuminate when the batteries can only supply 4.6V. the DMG is designed to run at 5V, with a voltage input tolerance of +/- 10%. meaning, (some of) these ICs are suggested to operate at 4.5V – 5.5V. this low-power indicator will alert you when the batteries can only supply 4.6V, so that you may extend the life of your equipment and are not surprised by a weak battery when it matters most (like a performance)