Is it fried? No TCXO
Posted: Sat Jul 06, 2019 8:53 pm
History- built my first hotspot on 7/3 with pi Zero and eBay MMDVM board. Followed directions by Toshen to a T and only enabled DStar. Setup home WIFI and iPhone hotspot.
Everything worked perfectly! Made several contacts from home WIFI on 7/3 and 7/4. Zero loss and 0% BER.
Then on 7/5 I took everything to work. Monitored DStar all day and made a couple contacts via iPhone hotspot. CPU temps were around 100-110 degrees.
After work I wanted to try mobile. Started Jeep, plugged iPhone into USB for power (that was connected to Car Play), turned on iPhone hotspot. Then I set Jumbospot in dash tray, activated OEM Jeep converter and plugged my Jumbospot into the 110v socket.
Jumbospot got really hot to the touch. Couldn’t connect with radio when keying up. Seemed like Jumbospot shutdown due to overheating. I realized that I had inadvertently set the Jumbospot on top of a large metal coin that was in the dash tray. My Jumbospot isn’t in a case yet. I wondered if I shorted something out?
When I got home I reconnect and noticed dashboard was showing everything in green except DStar on Modes Enabled. Also the CPU was up to about 150 degrees. I did a lot of forum and internet searching to diagnose it. The good news is I’ve learned a lot!
So...I completely reformatted the SD card, flashed Pi-Star again and setup everything from the beginning. DStar mode still red. CPU still hot. Started digging around in SSH (new to me). Ran update in SSH. Them tried to flash MMDVM firmware a couple times. Got a “failed to init device” error. It’s also mentioning something about Arduino.
Ran logs during reboot and get the failed to (something...) after six tries message.
What else can I try? What did I do wrong? Time for a new board?
Sent from my iPhone using Tapatalk
Everything worked perfectly! Made several contacts from home WIFI on 7/3 and 7/4. Zero loss and 0% BER.
Then on 7/5 I took everything to work. Monitored DStar all day and made a couple contacts via iPhone hotspot. CPU temps were around 100-110 degrees.
After work I wanted to try mobile. Started Jeep, plugged iPhone into USB for power (that was connected to Car Play), turned on iPhone hotspot. Then I set Jumbospot in dash tray, activated OEM Jeep converter and plugged my Jumbospot into the 110v socket.
Jumbospot got really hot to the touch. Couldn’t connect with radio when keying up. Seemed like Jumbospot shutdown due to overheating. I realized that I had inadvertently set the Jumbospot on top of a large metal coin that was in the dash tray. My Jumbospot isn’t in a case yet. I wondered if I shorted something out?
When I got home I reconnect and noticed dashboard was showing everything in green except DStar on Modes Enabled. Also the CPU was up to about 150 degrees. I did a lot of forum and internet searching to diagnose it. The good news is I’ve learned a lot!
So...I completely reformatted the SD card, flashed Pi-Star again and setup everything from the beginning. DStar mode still red. CPU still hot. Started digging around in SSH (new to me). Ran update in SSH. Them tried to flash MMDVM firmware a couple times. Got a “failed to init device” error. It’s also mentioning something about Arduino.
Ran logs during reboot and get the failed to (something...) after six tries message.
What else can I try? What did I do wrong? Time for a new board?
Sent from my iPhone using Tapatalk