dudel_ludel
New member
Dear Forum,
i´ve got an hardware problem with my project. I am currently working on an automatically drum tuning device. At first i used an Arduino Mega, but because of it´s size and less storage i switched to a Teensy 4.0. It worked all quite fine, but then i noticed that the controller is very hot (55-60°C). I was wondering if this is new or if the controller has been this hot all along. I figured I probably would have noticed since it had been running for two weeks at that point. I checked the wiring but found nothing. Now the controller seems to be burned out. However, this does not smell burnt. I have put a diagram of the wiring here in the attachment.
Basically I have a 12 volt power supply and a step down module that feeds 5 volts to the Teensy. I also measured these values with a multimeter. I have installed a diode on this line, which has 0.5 volts power loss (4.5 volts at the Teensy). This is to prevent that the current flows from the PC to the electrical components when a connection between PC and controller via micro USB. I frequently remeasured the voltages in the circuit, because fluctuations in the voltage always occurred when I had the PC plugged in addition to the normal voltage supply. As soon as this was the case, the voltage at the controller always increased by about 0.1 - 0.3 volts. This always seemed strange to me, but I also read that the Vin Pin and Micro USB are connected and then thought nothing more of it. I just installed the diode. Can you please take a look at the schematic, and check if there is a fault in there that could have caused the damage?
Thanks a lot!
i´ve got an hardware problem with my project. I am currently working on an automatically drum tuning device. At first i used an Arduino Mega, but because of it´s size and less storage i switched to a Teensy 4.0. It worked all quite fine, but then i noticed that the controller is very hot (55-60°C). I was wondering if this is new or if the controller has been this hot all along. I figured I probably would have noticed since it had been running for two weeks at that point. I checked the wiring but found nothing. Now the controller seems to be burned out. However, this does not smell burnt. I have put a diagram of the wiring here in the attachment.
Basically I have a 12 volt power supply and a step down module that feeds 5 volts to the Teensy. I also measured these values with a multimeter. I have installed a diode on this line, which has 0.5 volts power loss (4.5 volts at the Teensy). This is to prevent that the current flows from the PC to the electrical components when a connection between PC and controller via micro USB. I frequently remeasured the voltages in the circuit, because fluctuations in the voltage always occurred when I had the PC plugged in addition to the normal voltage supply. As soon as this was the case, the voltage at the controller always increased by about 0.1 - 0.3 volts. This always seemed strange to me, but I also read that the Vin Pin and Micro USB are connected and then thought nothing more of it. I just installed the diode. Can you please take a look at the schematic, and check if there is a fault in there that could have caused the damage?
Thanks a lot!