Just had fun in the hotel room last night after work and built one of these:
http://www.seeedstudio.com/depot/digital-storage-oscilloscope-diy-kit-with-panels-p-515.html?cPath=71
No camera with me so borrowed those images off the company site.
Interesting project.
* Max sample rate - 5M/s (AUTO mode)，8 bits
* Sample memory depth - 256 bytes
* Analog bandwidth - 1MHz
* Vertical sensitivity - 100mV/Div - 5V/Div
* Vertical position adjustable with indicator
* Input impedance - 1MΩ
* Max input voltage - 50Vpp
* DC/AC coupling
* Horizontal - 2μs/Div - 10m(minute)/Div
* Auto, normal and single trig modes
* Rising/falling edge trigger
* External trig available
* Trig level adjustable with indicator
* Hold/run feature
* Save up to 6 captures to EEPROM and retain after power down
* Retrieve and display saved captures
* Transfer its screen to PC as bitmap file via serial connection
* Built-in 500Hz/5Vpp test signal
* Frequency counter (only for TTL level input signal)
* 9 DC power supply
* Dimension: 110mm X 65mm X 25mm (without case)
I bought it from http://www.nkcelectronics.com/
5 comments:
Just to clarify, did you get that complete oscilloscope kit for 33 bucks? It seems unbelievably cheap.
Yes, It was very cheap didn't think was possible. I ended up with the one with all the 0603 SMD premounted so the build was seriously fast.
Note that it is only 2MHz so a bit of a toy in many peoples mind but fine for 455KHz and audio stuff.
And it was fun to build.
72
Dom
M1KTA
It arrived in a little white plastic bubble wrap bag (like an A5 jiffy envelope) The shipping invoice says (figures in $ not £):
Digital Storage TST-0002 1 35.95
Oscilloscope with Panels
DIY KIT (SMD pre-soldered)
Subtotal 35.95
Shipping 8.50 International USPS First Class
Tax 0.00
Total 44.45
Bought it from http://www.nkcelectronics.com/
I'm almost tempted at that price, but it's over the threshold for having to pay VAT and the rip-off tax collection charge so it would end up costing about 50 quid.
I never had to pay anything else on top.
72
Dom
M1KTA
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