Surf PI Micro Variant V1.00 :- PIC Controller hex file.

[WM6]

Finally my order was checked and accepted.
Payment done: Paypal and DHL shipping.

Boards was really cheap: 5 boards for 5 USD.
But DHL is expensive, as always, 22 USD.
In a week or so, boards should be here. Hope so.

Marty, for my boards surplus I need to check different "overcrowded" places in my lab.
For sure I have Silverdogs Chance PI board and probably kit too, if you are interested.

[MartyJ1963]

Hi WM6, I'm glad you got your order sorted. I may be interested in the Chance PI pcb, I know I was looking at the details of it last year. Thanks, Marty.

[liudengyuan]

Does anyone know if all the square waves output by this pic are positive or negative pulses. Why use transistors to push electronic switches

[Carl-NC]

Does anyone know if all the square waves output by this pic are positive or negative pulses. Why use transistors to push electronic switches

It appears they are all negative. The transistors are for level-shifting.

[WM6]

Hi WM6, I'm glad you got your order sorted.

Marty.

Received PCBs today.

It takes 5 days by DHL (PCB production inclusive). Not bad.

[bernte_one]

post your results

i need some motivation to end -assemble my pcb

[WM6]

post your results

i need some motivation to end -assemble my pcb

Ha,ha, probably I need some sort of Corona quarantine motivation too.

[MartyJ1963]

Looking forward to reading about your build progress too WM6. Regards, Marty

[WM6]

Started collecting/ordering parts.
According experience with China post have to wait till Christmas.

[bernte_one]

my wife gave me straight order during corona time
rework of garden
nonsense und useless homework things
looking tv with her
drinking and smoking, and long conversation in the evenings in the reworked garden

was not possible to meet with other families nearby

so i went a bit a half pussie man
but i hope i can get the turn and can go to the yearly bikers club party if corona laws allow this till end of june

[WM6]

my wife gave me straight order during corona time
rework of garden
nonsense und useless homework things
looking tv with her

Happy you. Do you have some salad for sale already?

[liudengyuan]

I made it, the effect is very poor

[WM6]

I made it, the effect is very poor

Can you put photo here, to see your components?

[liudengyuan]

I don’t know how to place the picture, the circuit is just a simple two-stage amplification, there is no way to deal with the signal, unstable, low sensitivity

[liudengyuan]

In actual use, there is no memory button is very inconvenient, you have to adjust the machine while walking, in this case, you can never use