I’ve placed the Q24+ with SD on it’s own PCB which consists of only the 60 pin header and the two capacitors on the 3mm power line. Each of the 60 pins goes out to headers so that they can be accessed when necessary. I’ve connected the module as per the documentation dictates (Q24 Series Customer Design Guidelines) and measuring the VCC which is pin 40, I do not get the 2.8V. What I am trying to do is connect one controller directly to the wireless module without the use of a MAX chip or signal converter. I’m only using the UART to communicate to it so I only have RX, TX, and Ground. I’'m powering the Q24 with 3.8V and these are the values that I am getting:
pin 6: ON/OFF switch = 3.8V
pin 50: SIM_PRES = 0V
pin 40: VCC = 50mV
I’m not using the battery backup so that pin (38) is set to ground. I also have CTS and RTS, each connected to a 100ohm pull-up resistor to VCC.
Can anyone please guide me as to how to properly connect the module?