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  • eburman commented on banlanji's instructable mini tesla coil diy1 day ago
    mini tesla coil diy

    I received the kit from Aliexpress. Instructions were clear except the polarity of the DC power jack were not clearly stated. I nearly shorted it out by reversing the polarity. The center plug of the jack is positive(+). The sleeve is negative(-). Fortunately I did not harm the circuit. It draws about 400 mA at 12VDC. It functions exactly as depicted in the Instructable. FUN!

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0013: Autosport3 weeks ago
    HackerBoxes 0013: Autosport

    Thanks for the offer mainegeek, but I'm looking for something a little more "plug and play." I've never even used any Android operating system before and I think that the CyanogenMod variant of Android OS would be a little beyond me. I'll ask around, somebody has got to have a old crusty phone they don't want anymore.

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0013: Autosport3 weeks ago
    HackerBoxes 0013: Autosport

    Well. O.K. iOS is pretty hopeless when it comes these non-Apple authorized Bluetooth applications. I sooooo very much need an Android or something equivalent just for these HackerBoxes projects. Does anyone have some practical advice on where I can pick something up really cheep for Bluetooth experiments? Maybe an ultra cheep Aliexpress Chinese android-ish knockoff? I also have some old iPhones. Does someone know of a clearly written link to a step by step tutorial on how to jail break an iPhone and open up the bluetooth system for general use?

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0013: Autosport1 month ago
    HackerBoxes 0013: Autosport

    Same here. Does not work with iPhone 7. Paired with MacBook Pro but did not connect with EOBD Facile application. I'd be interested to know if anyone has gotten this little device to work with any iOS or OS X system.

    Here is an interesting post that I came across that seems to explain what's going on https://www.lifewire.com/elm327-iphone-adapter-doesnt-work-534643

    I've noticed the same issue. Works one day, but not the next. After multiple attempts to connect it eventually works though.

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0011: HAX0R TREAT2 months ago
    HackerBoxes 0011: HAX0R TREAT

    Nice job! I've got my Halloween skull working now with the PIR too. But my code modification simply runs through the loop if the PIR signal is HIGH. The LED's stay lit at the last color called once the PIR times out. I'd like to modify the code so that the LED blank out until the next time the PIR is triggered. Do you have a solution?

    Here it is up and running.

    BRILLIANT!!! I lopped out the appropriate snippet of your code and shoved it where I thought it should go into mine and guess what? It works! Just in the nick of time for Halloween. Thanks so much!

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0011: HAX0R TREAT2 months ago
    HackerBoxes 0011: HAX0R TREAT

    Fantastic! Well done! Very creative!

    I had the same problem occur when I popped in my USB/serial module. I thought maybe it was defective so I tried one that I had from box #8 that I knew was working before. Same problem, so it must be something to do with the Sierra update. I tried following the link suggested below but I wasn't able to make heads or tails of it. But, here is what did work for me: Check out the ReadMe.pdf that is provided along with the V1.3 install file that you need to download from WCH. If you read through the instructions you will see at the very bottom of the page that they suggests that you should uninstall any older driver versions using some specific terminal commands. Enter them exactly as written (it always makes me a little nervous when I delete files using sudo). It worked for me! No more kern...see more »I had the same problem occur when I popped in my USB/serial module. I thought maybe it was defective so I tried one that I had from box #8 that I knew was working before. Same problem, so it must be something to do with the Sierra update. I tried following the link suggested below but I wasn't able to make heads or tails of it. But, here is what did work for me: Check out the ReadMe.pdf that is provided along with the V1.3 install file that you need to download from WCH. If you read through the instructions you will see at the very bottom of the page that they suggests that you should uninstall any older driver versions using some specific terminal commands. Enter them exactly as written (it always makes me a little nervous when I delete files using sudo). It worked for me! No more kernel panic! It seems to be working fine for now.

    So what do you expect from slave labor (political prisoners, 12 year old children, 16 hour work days)? Just one itty bitty blob of solder? The two pins share the same tracing so no harm done.

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  • Long range, 1.8km,  Arduino to Arduino wireless communication with the HC-12.

    http://www.banggood.com/SMA-Male-Crimp-GSM-GPRS-433MHz-Antenna-3dbi-Magnetic-Base-p-961494.html?rmmds=search

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0010: Phython Pi4 months ago
    HackerBoxes 0010: Phython Pi

    Thanks HackerBoxes! That was just enough info to help me with my WiFi connection for my Mac system with Airport extreme. My base station password uses "WPA2 Personal". There are no exact corresponding choices in Wicd other then WPA 1/2 (Passphrase) which wasn't working for me. I went into preferences (advanced) WPA Supplicant driver and selected "none" and...voila! I'm in! So, for those luddites who stubbornly insist on using Mac Computers here is your solution.

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  • eburman followed Man Up4 months ago
  • eburman commented on HackerBoxes's instructable HackerBoxes 0010: Phython Pi4 months ago
    HackerBoxes 0010: Phython Pi

    Thanks for the heads up! My card works well. No problems at all.

    Trichinella? Next time avoid eating raw bear meat!And considering the viscosity of that mucous I'd say your board is about ready to ovulate. Ahhh the smell of it! Time to get it on dude!

    Trichinella? Next time avoid eating raw bear meat! And considering the viscosity of that mucous I'd say your board is about ready to ovulate. Ahhh the smell of it! Time to get it on dude!

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  • Long range, 1.8km,  Arduino to Arduino wireless communication with the HC-12.

    I did once have my technician class license. It has long since expired. I never actually used it. I was curious and on a lark I decided to take the test and I passed. More and more I'm looking into the possibility of becoming a full fledged amateur radio operator. Eventually I'm sure I'll join the club.

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0009: Virtual Worlds5 months ago
    HackerBoxes 0009: Virtual Worlds

    Indeed. Replacing Serial1 for Serial doest the trick! SoftwareSerial does not seem to work with the Arduino Pro Micro.

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  • eburman commented on HackerBoxes's instructable HackerBoxes 0009: Virtual Worlds5 months ago
    HackerBoxes 0009: Virtual Worlds

    Hey all you PC challenged (i.e. Mac OS X) people out there. Has anyone had any luck getting the HC-05 to communicate with their Mac Computer? I'm using El Capitan. So far I can connect via Bluetooth and the HC-05 tty port shows up in the terminal, but I've had no luck with moving data back and forth. I also suspect that the iPhone is a lost cause. Any detailed advice would be appreciated.

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  • Long range, 1.8km,  Arduino to Arduino wireless communication with the HC-12.

    I tried again on my way to work today. I got a distance of 8.7 miles (14 KM), direct line of sight from my car to my house!

    These antennas work great! Magnetic mount too. http://www.banggood.com/SMA-Male-Crimp-GSM-GPRS-4...

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  • Long range, 1.8km,  Arduino to Arduino wireless communication with the HC-12.

    I suspect I'm going to hear from PhilKE3FL about this. I'm probably doing something that isn't Koser with the Amateur Radio community.

    Great tutorial! I finally started working through the steps today and so far I've had great success. I managed to get the driver for the Chinese Arduino boards working on my Mac (OS X 10.11 El Capitan). I got the LED toggle button sketches for the two boards up and working and then I wondered what the maximum range of the HC-12 might be. My home happens to sit atop a hill which has a broad view over my town so I figured I would get good range of transmission. I modified the send sketch for the transmitter unit so that it would automatically send a signal to flash the LED on the receiver. I was able to travel around with the receiver unit and as long as the LED kept flashing I would know that I was still receiving a signal. I used external antennas for each module as you suggested. I se...see more »Great tutorial! I finally started working through the steps today and so far I've had great success. I managed to get the driver for the Chinese Arduino boards working on my Mac (OS X 10.11 El Capitan). I got the LED toggle button sketches for the two boards up and working and then I wondered what the maximum range of the HC-12 might be. My home happens to sit atop a hill which has a broad view over my town so I figured I would get good range of transmission. I modified the send sketch for the transmitter unit so that it would automatically send a signal to flash the LED on the receiver. I was able to travel around with the receiver unit and as long as the LED kept flashing I would know that I was still receiving a signal. I used external antennas for each module as you suggested. I set the transmitter unit running outside on my deck which overlooks town. I put the other unit in my car and started driving around. I found that I easily got a consistent signal around my entire neighborhood even in areas where trees and homes obstructed the line of sight. I then took to the highway. The farthest line of sight distance was FIVE MILES AWAY (8 KM) as the crow flies! I measured the direct line of sight distance on google from my home to where my car was parked. Amazing! It would probably go further but I decided to end the experiment at that point. The test was using my HC-12 with default settings unaltered. If I changed the HC-12 settings and connect the transmitter up to my rooftop scanner antenna I wouldn't be surprised to get even better range.

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