Dasmikro (TBS Benedini clone)
Re: Dasmikro (TBS Benedini clone)
Thanks Jee, I'll take a look.
Derek
Too many project builds to list...
Too many project builds to list...
Re: Dasmikro (TBS Benedini clone)
The NextGen sounds have a lot of noise on my PC... what's the reason?
Re: Dasmikro (TBS Benedini clone)
So it's no shame for the TBS Benedini clone, then unfortunately I'll have to postpone or even forget about the sound issue
Re: Dasmikro (TBS Benedini clone)
Hi, I am Fred and a user of the DasMikro sound boards. I'm not in to warfare, but Emergency vehicles, 1:16 scale. The DasMikro V3 is great for my models.
But I haven't found out one thing, and I tried already several option I thought that could work.
I want the back-up beeping to start when the truck is reversing. I know I can start it by selecting the sound, but is there a way to get it starting automatically. I can connect an output to a led, and have it lighten up when reversing. But can I connect a sound to it.
I know you can connect a sound (canon) to a flash of light, so who can guide me in the right direction ?
But I haven't found out one thing, and I tried already several option I thought that could work.
I want the back-up beeping to start when the truck is reversing. I know I can start it by selecting the sound, but is there a way to get it starting automatically. I can connect an output to a led, and have it lighten up when reversing. But can I connect a sound to it.
I know you can connect a sound (canon) to a flash of light, so who can guide me in the right direction ?
Re: Dasmikro (TBS Benedini clone)
Hello.
I have a question for people familiar with TBS mini and its Chinese copies. It's about connecting the drives. In the receiver, I have the motors on channels 2 and 3. Therefore, I connect channel 2 of the receiver to the "prop1 in" output in the tbs and then "prop 1 out" with the control cable from the controller.
And now the question is how to connect the second motor. Channel 3 with "prop 2 in" but where do I connect the control cable from the second controller?
And similarly, another question - if I have the tower rotation on channel 4, how do I connect this crap and set it in the app so that the tower rotation produces the appropriate sound>
I will add that the sound library for the tank is loaded.
I have a question for people familiar with TBS mini and its Chinese copies. It's about connecting the drives. In the receiver, I have the motors on channels 2 and 3. Therefore, I connect channel 2 of the receiver to the "prop1 in" output in the tbs and then "prop 1 out" with the control cable from the controller.
And now the question is how to connect the second motor. Channel 3 with "prop 2 in" but where do I connect the control cable from the second controller?
And similarly, another question - if I have the tower rotation on channel 4, how do I connect this crap and set it in the app so that the tower rotation produces the appropriate sound>
I will add that the sound library for the tank is loaded.
Re: Dasmikro (TBS Benedini clone)
Hoping someone on here might have an idea of what I’m doing wrong, I’ve posted other places on here and haven’t gotten an answer, maybe try in this DasMikro mega thread?
So I am using an OpenPanzer TCB and DasMikro soundboard, as Benedini doesn’t make them anymore. I also have a 100 watt mono amp HiLetgo 2pcs TPA3116 100W Audio... htt ... b_ap_share and a 4ohm 20 watt speaker. My battery is a 36v LiPo (full metal 1/8 scale) with a 24v and 12v step downs for various parts of the tank. I know just enough about electronics to get by, but not enough to know how everything works from the ground up.
Here is my conundrum. I want to power everything off of the main 36v battery, but for some reason I cannot get the amp to function when I power it and the TCB/DasMikro from the same battery. I was trying to do 24v to the amp and 12v to the TCB/DasMikro. I get the same result if I power the amp with 12v as well.
However, if I power the amp with a separate 3s 12v LiPo, everything works. Why is this? And is there any way to make the amp function off of the same battery as the TCB/DasMikro?
Also, I tried installing an inline voltage cutoff device 12-36V Low Voltage Digital... https:// ... b_ap_share between the 3s LiPo and the amp. When I turned on the amp battery with the inline voltage cutoff device while the DasMikro was NOT plugged into the amp, everything worked fine. When I plugged in the DasMikro to the amp with the voltage cutoff device, turned on the TCB/DasMikro, then turned on the amp (this was my first amp https://store.sure-electronics.com/product/445), it fried my amp and DasMikro. I ended up doing this with two different amps/DasMikro before I finally learned to stop doing that, as it fried both the amp and DasMikro both times (not sure what I was expecting…)
Any idea why adding the voltage cutoff to the amp circuit fried everything, whereas it worked fine when the voltage cutoff was not installed?
Let me know if anyone has any ideas, or if there is a better place to post this.
So I am using an OpenPanzer TCB and DasMikro soundboard, as Benedini doesn’t make them anymore. I also have a 100 watt mono amp HiLetgo 2pcs TPA3116 100W Audio... htt ... b_ap_share and a 4ohm 20 watt speaker. My battery is a 36v LiPo (full metal 1/8 scale) with a 24v and 12v step downs for various parts of the tank. I know just enough about electronics to get by, but not enough to know how everything works from the ground up.
Here is my conundrum. I want to power everything off of the main 36v battery, but for some reason I cannot get the amp to function when I power it and the TCB/DasMikro from the same battery. I was trying to do 24v to the amp and 12v to the TCB/DasMikro. I get the same result if I power the amp with 12v as well.
However, if I power the amp with a separate 3s 12v LiPo, everything works. Why is this? And is there any way to make the amp function off of the same battery as the TCB/DasMikro?
Also, I tried installing an inline voltage cutoff device 12-36V Low Voltage Digital... https:// ... b_ap_share between the 3s LiPo and the amp. When I turned on the amp battery with the inline voltage cutoff device while the DasMikro was NOT plugged into the amp, everything worked fine. When I plugged in the DasMikro to the amp with the voltage cutoff device, turned on the TCB/DasMikro, then turned on the amp (this was my first amp https://store.sure-electronics.com/product/445), it fried my amp and DasMikro. I ended up doing this with two different amps/DasMikro before I finally learned to stop doing that, as it fried both the amp and DasMikro both times (not sure what I was expecting…)
Any idea why adding the voltage cutoff to the amp circuit fried everything, whereas it worked fine when the voltage cutoff was not installed?
Let me know if anyone has any ideas, or if there is a better place to post this.
Re: Dasmikro (TBS Benedini clone)
Hi Jib, I can't pinpoint exactly where your problem lies, but the issue clearly sounds like mis-matched voltages interfering with each other.
If you are powering the DasMikro from the TCB (5 volts through the middle pin of the PROP connections), then you shouldn't need to provide it any other voltage from your battery.
The issue is most likely your connections from the DasMikro to the amplifier. Note there are three pins on the DasMikro "Speaker/Amp" connector. According to the Benedini manual, the top pin (furthest elevated above the PCB) is labelled "Speaker Plus." It is only to be used when connecting a speaker directly to the DasMikro, in other words, when you are using the DasMikro onboard amplifer. You are using your own amplifier, so this pin will NOT be used!
The middle pin is labelled "Speaker Minus" and the bottom pin is "Ground." These are the two pins you will connect to your external amplifier. I have attached a screenshot from the Benedini manual that shows these connections. He includes some resistors which I believe creates a volume control, but I don't know if they are necessary. Your amp already has a volume control, so I'd think you could skip them.
Your amplifier has two pins for the audio input, labelled "IN -" and "IN +". It might not matter what the polarity is from these to the DasMikro amp connections. But I would try connecting speaker "Ground" from the DasMikro to "IN -" on the amplifier, and "Speaker Minus" from the DasMikro to "IN +" on the amplifier.
You could also try powering both the Amplifier and the DasMikro directly from your 12 volt source, but in that case, you MUST remove the middle pin of the servo connectors from the TCB to the DasMikro. In other words, your Prop connections from the TCB will only use the top wire (Signal) and bottom wire (Ground).
Before you do any of this, you could take a multimeter on each device individually and see what the voltage readings are on the various pins when powered from your battery. Any power pin on one device having a voltage that doesn't match its corresponding power pin on the other device, is going to cause you a problem.
I know this is all rather confusing, and my descriptions are probably poor, but hopefully it at least gives you some idea of what to be looking for. Let us know what you discover.
If you are powering the DasMikro from the TCB (5 volts through the middle pin of the PROP connections), then you shouldn't need to provide it any other voltage from your battery.
The issue is most likely your connections from the DasMikro to the amplifier. Note there are three pins on the DasMikro "Speaker/Amp" connector. According to the Benedini manual, the top pin (furthest elevated above the PCB) is labelled "Speaker Plus." It is only to be used when connecting a speaker directly to the DasMikro, in other words, when you are using the DasMikro onboard amplifer. You are using your own amplifier, so this pin will NOT be used!
The middle pin is labelled "Speaker Minus" and the bottom pin is "Ground." These are the two pins you will connect to your external amplifier. I have attached a screenshot from the Benedini manual that shows these connections. He includes some resistors which I believe creates a volume control, but I don't know if they are necessary. Your amp already has a volume control, so I'd think you could skip them.
- Benedini_External_Amplifier.jpg (32.93 KiB) Viewed 117 times
You could also try powering both the Amplifier and the DasMikro directly from your 12 volt source, but in that case, you MUST remove the middle pin of the servo connectors from the TCB to the DasMikro. In other words, your Prop connections from the TCB will only use the top wire (Signal) and bottom wire (Ground).
Before you do any of this, you could take a multimeter on each device individually and see what the voltage readings are on the various pins when powered from your battery. Any power pin on one device having a voltage that doesn't match its corresponding power pin on the other device, is going to cause you a problem.
I know this is all rather confusing, and my descriptions are probably poor, but hopefully it at least gives you some idea of what to be looking for. Let us know what you discover.
NO SUPPORT THROUGH PM - read why
Re: Dasmikro (TBS Benedini clone)
All of this makes sense to me, for the most part. The DasMikro seems to be based off of the Mini (9 ports) and not the V2 (10 ports, one of which is for an external amp). Everything I seen about the V1 said to not use the bottom pin in the speaker port, but I do notice that with the V2, in the amp port it is the bottom two pins that are used. I will give this a try. I have learned somewhat from my past mistakes and now I have two DasMikros invade one burns up.LukeZ wrote: ↑Thu Jun 12, 2025 3:42 pm Hi Jib, I can't pinpoint exactly where your problem lies, but the issue clearly sounds like mis-matched voltages interfering with each other.
If you are powering the DasMikro from the TCB (5 volts through the middle pin of the PROP connections), then you shouldn't need to provide it any other voltage from your battery.
The issue is most likely your connections from the DasMikro to the amplifier. Note there are three pins on the DasMikro "Speaker/Amp" connector. According to the Benedini manual, the top pin (furthest elevated above the PCB) is labelled "Speaker Plus." It is only to be used when connecting a speaker directly to the DasMikro, in other words, when you are using the DasMikro onboard amplifer. You are using your own amplifier, so this pin will NOT be used!
The middle pin is labelled "Speaker Minus" and the bottom pin is "Ground." These are the two pins you will connect to your external amplifier. I have attached a screenshot from the Benedini manual that shows these connections. He includes some resistors which I believe creates a volume control, but I don't know if they are necessary. Your amp already has a volume control, so I'd think you could skip them.
Benedini_External_Amplifier.jpg
Your amplifier has two pins for the audio input, labelled "IN -" and "IN +". It might not matter what the polarity is from these to the DasMikro amp connections. But I would try connecting speaker "Ground" from the DasMikro to "IN -" on the amplifier, and "Speaker Minus" from the DasMikro to "IN +" on the amplifier.
You could also try powering both the Amplifier and the DasMikro directly from your 12 volt source, but in that case, you MUST remove the middle pin of the servo connectors from the TCB to the DasMikro. In other words, your Prop connections from the TCB will only use the top wire (Signal) and bottom wire (Ground).
This I am having a hard time grasping. The DasMikro is powered by a 5V BEC from the TCB, and the amp would ideally be powered by a 24v connection (its input voltage is 12v to 24v). The amp has 3 two pin ports, signal in, power in, and signal out (speaker). Are you saying you would expect problems if the power input of the DasMikro and the amp are different voltages, if the bottom two pins on the speaker out port on the DasMikro are used, or if the top two pins are, or something else?LukeZ wrote: ↑Thu Jun 12, 2025 3:42 pm Before you do any of this, you could take a multimeter on each device individually and see what the voltage readings are on the various pins when powered from your battery. Any power pin on one device having a voltage that doesn't match its corresponding power pin on the other device, is going to cause you a problem.
I know this is all rather confusing, and my descriptions are probably poor, but hopefully it at least gives you some idea of what to be looking for. Let us know what you discover.
Also, is there anywhere online that I can get that manual you referenced? DasMikro has an installation schematic that is light on details, and their manual for their card is actually for the V2, and doesn’t have the graphic you posted. Not sure if your manual was something originally posted on Benedini’s website that is now inaccessible, or if I missed it somewhere.
I appreciate your help. I’ve been beating my head on this one for a while. I’ve thought about using the bottom two pins on the DasMikro, but was worried. Your explanation and schematic makes me feel more confident about trying this. If nothing else, I’ve got a back up DasMikro just in case.
Re: Dasmikro (TBS Benedini clone)
Nope so neither solution worked.
Plugging the 24v from the main line into the amp and using the bottom two pins of the DasMikro speaker port, with the DasMikro receiving power from the TCB just made the speaker make a pop every 2 seconds, which is what I think I remember it doing when I tried doing the same thing before but with the upper two pins.
Plugging the 12v line directly into Prop1 and 12v into the amp, while making sure there were no positive or negative wires running to the ESC ports on the TCB, while using the bottom two pins on the DasMikro speaker port, resulted in yet another fried DasMikro.
So maybe this was just never meant to work with the V1 and the V2 was designed with amps specifically in mind. As no one currently sells the V2 I guess I will not get the chance to test this.
Going to program my remaining V1 and just leave this alone for the foreseeable future.
EDIT: Correction there seems to be one seller on AliExpress selling the version with the amp port for $58 plus shipping, more than double was DasMikro sells the V1 for, but still cheaper than the original Benedini cards. The rating is 3 stars with two reviewers… Not sure if I want to gamble with this or not.
Interestingly the description for the v3 on AliExpress says only 4v-6V, whereas the DasMikro V1 description says 3.5V-12v with the caveat that it come from a receiver. So maybe it was me supplying 12v to the V1 that fried it, if it’s not really meant to handle 12v?
Plugging the 24v from the main line into the amp and using the bottom two pins of the DasMikro speaker port, with the DasMikro receiving power from the TCB just made the speaker make a pop every 2 seconds, which is what I think I remember it doing when I tried doing the same thing before but with the upper two pins.
Plugging the 12v line directly into Prop1 and 12v into the amp, while making sure there were no positive or negative wires running to the ESC ports on the TCB, while using the bottom two pins on the DasMikro speaker port, resulted in yet another fried DasMikro.
So maybe this was just never meant to work with the V1 and the V2 was designed with amps specifically in mind. As no one currently sells the V2 I guess I will not get the chance to test this.
Going to program my remaining V1 and just leave this alone for the foreseeable future.
EDIT: Correction there seems to be one seller on AliExpress selling the version with the amp port for $58 plus shipping, more than double was DasMikro sells the V1 for, but still cheaper than the original Benedini cards. The rating is 3 stars with two reviewers… Not sure if I want to gamble with this or not.
Interestingly the description for the v3 on AliExpress says only 4v-6V, whereas the DasMikro V1 description says 3.5V-12v with the caveat that it come from a receiver. So maybe it was me supplying 12v to the V1 that fried it, if it’s not really meant to handle 12v?
