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Hello everyone. I'm trying to replicate this module but at a lower cost: **broken link removed**
The problem is that I don't know where to buy these kind of lenses. The one in the module is a 5.6mm Collimator lens with IR Cutoff filter. Probably I wont use exactly the same model because I have...
Where to buy in Miami?
Hello everyone. I'm from Argentina and I will be travelling to Miami next week. I want to buy a Xilinx evaluation kit (probably this one: **broken link removed**) but I don't know where to buy it.
I can't buy it online because I will be staying only a few days. Does...
Ok. I apologise for what I said but please don't make assumptions about whats more important for me (my brothers happiness or the price for the parts). The problem here is that the part that I need are soo expensive (shipping+costs) that is cheaper to buy the charger directly from Apple...
Yes, you are right but you really have no idea the difference between buying an IC in digikey as an USA citizen and buying the exact same thing as a foreigner.
Did you know that 1 peso (Argentine currency) equals 0.3 dolars? Now imagine I buy something from maxim and they charge me 30 dolares in...
mc34063a aa usb charger
Hello everyone.
I'm trying to design an ipod charger for my brother. The problem is that I can't get the components I need here in my country (Argentina).
I want to build something like this...
vibration sensor using speaker
I know this topic is really old but....could someone explain a bit more this?
What amount of vibration does this kind of homemade sensor needs to detect something?
I want to develope an anti-theft system for backpacks jeje. When you are sleeping, you turn it on...
I've been re-reading the whole topic.
I'm using a 220uH choke..could be this the problem of the low voltages?..Maybe I'm demanding too much current to the USB port. I have really no idea, I'm just guessing based on what "Bleska" said here:
Hi JQL. Thanks for your help.
First question: What's the diference between "Targen Vpp" and "MPLAB ICD 2 Vpp" (the ones that appear in MPLAB settings). I guess the "MPLAB ICD 2 Vpp" corresponds to the VPP-GEN in potyo's design because I'm getting good readings. Using a multimeter to measure...
Well, some news. Now it's detecting the target but it doesn't program it or anything. I tried to erase a 18F4550 and when I do the blank-check it fails.
Connecting to MPLAB ICD 2
...Connected
Setting Vdd source to MPLAB ICD 2
Target Device PIC18F4550 found, revision = a3
...Reading ICD Product...
Ok. Here I am again. RA3 = 2.4V - VPP-GEN=9.34V
.............................
just a little update, now I'm having these readings:
**broken link removed**
I'm trying to read or program a 16F84A and it doesn't recognize it. Tomorrow I'll recheck my PCB. I hope somebody can help me because I...
Ok, I'll try it later. Before I want to make sure that everything is working fine.
For instance, I'm having a problem. I'm trying to program a 16F84A (not debug), and ICD2 doen't recognize the target device:
ICDWarn0052: MPLAB ICD 2 cannot validate a target device. Please make sure that the...
ahhhhhhhhhhhhhhhhhhhhhh now I understand what folks said about the reverse current! Thank you so much.
I'll try with a target device, if everything goes fine I'll let you know. Do you think I should add a 1n4148 between ISP-VDD and HC126 power? Could it work?
Thanks.
mmm, I didn't undestand you. I miss TO put? ..or I miss put? ...
I rechecked the potyos schematic and it doesn't have any diode in the hc126 power....What should I do ?
Hi
goooooooooood newsss!!
I finished my potyo ICD2 and it worksss!!!
It passed the self test but I didn't test it with any pic. Later I'll do it.
Connecting to MPLAB ICD 2
...Connected
Setting Vdd source to MPLAB ICD 2
ICDWarn0020: Invalid target device id (expected=0x21, read=0x0)
...Reading...
Well, I've finished designing potyo's latest ICD2 in Altium.
Probably this week I'll do the PCB. If it works OK, I'll post it for everyone. The layout of the PCB is almost the same as potyo's eagle version but with minor modifications.
I hope it works.
Regards,
Gonza.
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