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| How to promote an USB oscilloscope to individual engineers? I am the Loto instru |
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| glarsson:
--- Quote from: rsjsouza on February 20, 2019, 01:58:30 am ---Do you have a physical unit? --- End quote --- No. Why should I buy something I can't use because of missing software? |
| jiangtao.lv:
Sorry, my fault. |
| jiangtao.lv:
Thank you very much ,It's very usefull of your kind advice. |
| jiangtao.lv:
--- Quote from: ogden on February 19, 2019, 08:55:12 pm --- --- Quote from: jiangtao.lv on January 31, 2019, 03:19:42 am ---I used two 37 Pins D-sub connectors as you see, it indeed limit my extension, I use every pin now with no one spare. Users are not suggested to disassemble and install this module too often, so the main consideration is the price factor in my choosing this connector. --- End quote --- I am puzzled about decision to make that supposedly low cost scope modular, with prehistoric & ugly DB- connector in a middle. Why? For what? IMHO cost of the split case, connector and assembly expenses do not offset USB socket and ez-usb IC (there's nothing much more on the interface board). --- End quote --- The reason is hard to explain because of my English expression, I try to say some: 1: If I make dozens of PCBs , sure I really don't need use ugly D-sub connectors. But If I need to produce thousands of PCBs, I will think differently. 2:If I split it into two parts. one is the common part, I can change only the second one to promote a new model.The common part can work with several different second part, vice versa. 3: If I there is an order for 1000 osc482,300 osc802, 550 osc2002, 80 oscA02. what is the most effective method for production?I don't need prepare exactly by the order. 4: with the common part ,I can opensource the second part for engineers some day. |
| jiangtao.lv:
thks,yes ,it is DE-15, my fault. I 'll change it. |
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