SMD to DIP.
This is nice if you want to use it with breadboards.
These are smd converter. not possible on breadboard. unless you are willing to use jumpers.
above has 2 sides.
top side is 32..64 0.8mm smd. but the pin numbers are correct for 64 pins.
bottom side is 32-100 0.5mm. pin numbers are correct for 100pins.
bought these two;
it finally arrived.
then i soldered 24c04 and 24c256 for testing.
how to use eeprom.h
used to read and write the internal eeprom of atmega mcu.
how to use Wire.h
used to read and write external i2c serial eeprom like 24C32, 24C128.
more info about external eeprom
CE, Communitee European, China Export, Cheap Edition or Closeby Explosion?
Here these things are sold by thousands as phone/ tablet gadgets along with the corresponding cable sets on market places…
I was lucky I could smell something, it could have went worse.
The 2 to 5 euro cost might sound very interresting to many, but it just ain’t worth to risk!!!
Drawing the raw circuit (left), optimising the circuit for own purposes (right), analysing the ingredients and soldering the 1st prototypes…
The pcb’s were just soldered and therefore not tested nor verified yet!
The SDT-Pcb could be connnected directly to the Arduino though due to the limited amount of available free pins with my TFT-Touch screen I decided to add it to my MCP23016 Pin expander chip/ shield to operate it on the available a4/a5 i2c pins later.
Now it’s time for checking & testing the pcb’s and create some arduino code so that we could do our first real tests…
Will be continued…
the hummer story…
I once bought such Remote Controlled Hummer Car but it couldn’t satisfy me just driving it.
So I pulled out the RX and TX boards and now will try use these 27MHz communication lines for/ on arduino purposes.
I couldn’t find any info on internet about the SCR2000 UC2E0K and SDT2000A UC2F1F0 chips but it won’t be too hard to redo a circuit as seen on the pictures.
Will be continued next time…Bye Mum
Posted in Electronics
re a nokia bt module i salvage.
got this old gsm dongle that has AT91SAM7X mcu. it is/was made by b-phreaks.co.uk or http://www.genieprojects.co.uk/ To be able to use it as a AT91sam7x dev board. 1st to erase the mcu flash just short the erase pin with 3.3v. now sam-ba can upload bin files.
for TXD/RXD with irda.
The USART0 peripheral has five possible external pins (RXD0, TXD0, SCK0, RTS0, CTS0). On the edge of
the chip package, these pins are labeled PA0, PA1, PA2, PA3, and PA4.