Hello.
I have an SKXBEE and also SKXBEE-PRO for my embedded wireless development. I am curious about SKXBEE's power requirements. From Xbee module's datasheet, it says that Tx current is at 217mA @ 3.3V and Rx current is at 55mA @ 3.3V for Xbee PRO, while Tx current of 45mA @ 3.3V and Rx current of 50mA @ 3.3V for Xbee.
I am wondering, is SKXBEE and SKXBEE-PRO following the same too? SKXBEEs have been interfaced to 5V, so will this affect the power requirements for Tx and Rx?
Currently, I am using 9V batteries, passing through a 5V regulator to provide power for my PIC starter kit, and from the UART 5V and GND, I extended and provide power to the attached SKXBEE/SKXBEE-PRO. I've noticed that, it is consuming quite alot of power, and after quite sometime, there's not much power left to power up my LCD and my LCD fades. My LCD power pin only shows 3.2V and constantly decreasing is SKXBEE is attached. My battery voltage levels has gone down to 7.4 V.
If I detach SKXBEE, I can power up my LCD normally with power back to normal 4.8 - 4.9 V, with 7.4V left on my battery.
Any ideas and suggestions are welcomed. Thank you for your time