![]() ![]() The only way to get the power light indicator to turn on is to completely unplug the monitor, let it sit ant then plug it back in. If I go to press the power button off and then on, the power light indicator will not come back on. To summarize how the monitor is acting: when I plug in the monitor, the power light will come on, but no images will appear on the monitor, and the blacklight does not turn on - just a powerless screen. If I had to guess I would say the blacklight stopped working, which seems odd as I've had the monitor for 12 days now and hadn't had any indication anything was failing. As mentioned, the monitor just seems to not come on in any capacity. I have unplugged all cables, held the power button down for 8 seconds (as suggested here) and plugged back the power cable and display port. I have tested the monitor using HDMI as well as display port. I've tested the monitor on two separate computers, to ensure it was not an issue with the pc/video card. I've plugged these power cords into separate outlets to rule that out. I've used two separate power cord (both supplied by Dell monitors) to rule out it being a power cord issue. I've used two separate displayport cables to rule out the cable being at fault. The power button seems unresponsive in that after unplugging the monitor, and plugging it back in, the power light will come on, but if I go to turn off the monitor and then turn it back on, the power light no longer will come on as if it does not even understand the input. I am not even at the point where I get the "no input source" nor can I use any of the buttons on the monitor to bring up the OSD menu. The issue: the monitor will not turn on in any capacity. I read previous posts on this forum and around to try and figure out the cause. I did some digging to see what the issue may be/what the solution could be. ![]() I was unable to access any menu on the monitor and even the power button seemed unresponsive. At this point, not even the backlight of the monitor was turning on. Figured it may be "asleep", so I rebooted the computer again - no luck. Turned off my computer to go to dinner and came back later, turning my computer/monitor back on.Ĭomputer booted up fine, monitor did not seem to turn on. Was using my computer/display throughout the day without any issue. If you want to do low power prototypes/measurements you should check out our guide on low power.I've brought this issue up in a separate thread but figured I'd make a new post to see if anyone has had this issue or knows a solution. However, the voltage regulator on the EE-NBIOT-01 is not optimal for low power. Looks like you’ve connected + on the Otii to VCC on the EE-NBIOT-01 (a natural thing to do). For other readers it is correct to connect TX to TX and RX to RX. The screenshot is quite low resolution, so hard to be sure, but from what I can see you’ve connected it correctly. You can also try just sending AT when testing, and it should reply OK back if the serial is working. If you click the button on the EE-NBIOT-01 it will reset the modem, and you should see some messages in the UART log (if it’s set up correctly). It usually appears a few seconds after booting, and the 0 means no firmware over the air available. Did you also set the «Digital voltage level» to 3.3V? The «Digital voltage level» also affect the TX-/RX-pin.īy the way, it looks like you’ve been able to receive a message from the EE-NBIOT-01: +UFOTAS: 0,1. Would be nice if they could include TX data in the UART log. If I’m not mistaken - the command is sent even though the UI does not reflect that. I don’t think you need to connect DGND when powering it from the Otii, but I don’t know the Otii that well. We have been able to hook up the EE-NBIOT-01 to an Otii Arc and send/receive AT-commands. As you can see on the image below, the UART log shows RX log from the modem. 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. New project created with LOGS - enable UART baudrate 9600. 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. 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). Now I want to send AT-commands with the OTII while measuring.Ĭomputer-to-OTII by supplied usb to micro-usb cable. 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). I want to measure the energy of a modem on a board called EE-NBIOT-01 v1.1.
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