I want to measure the energy of a modem on a board called EE-NBIOT-01 v1.1. I have verified that I am able to communicate with the modem on baud rate 9600 (using a TTL to USB cable and CoolTerm for serial communication). Now I want to send AT-commands with the OTII while measuring.
computer-to-OTII by supplied usb to micro-usb cable.
OTII to EE-NBIOT-01 for power by banana cables from + and - with HM6410 clamps to male-to-female jumper cables (sc13051 cables) to GND and VCC (EDIT: this has later been changed to 3.3V instead of VCC).
OTII to EE-NBIOT-01 for communication via jumper cables, TX on OTII to TXD on EE, RX on OTII to RXD on EE, DGND on OTII to GND on EE.
new project created with LOGS - enable UART baudrate 9600. 3.3V.
The board is powered and modem working, however no text commands are sent when attempting to send using the UART (when entering a command into “Text to send…” and typing enter, the text is simply highlighted. As you can see on the image below, the UART log shows RX log from the modem.