I'm a software developer who also makes RU-vid videos. My content is about programming, computers, embedded devices, Internet of Things, and electronics in general.
/* Contact info */ Email: davy.wybiral@gmail.com Github: github.com/wybiral
Thank you so much for this tutorial !! I have been trying to open a shell window using an arduino uno to interface the UART but since this board only has one hardware serial I had to use the SoftwareSerial lib, and I'm not sure why the output from the pi gets (really) gibberish. I've configured my baudrate to 115200 since I couldn't change the default baudrate on my pi's UART. Any advice on how to solve this problem ?
I feel privileged that the first language I learnt was IBM 1401 autocoder. I then went onto IBM 360 Assembler and so the concepts of x86 Assemble language are relatively easy. 360 processors had 16 general purpose registers and 4 (I think) floating point registers. Addresses of storage were calculated as base and displacement, that is, four bits denoting the base register and twelve bit denoting the offset from the address in that register.
For anyone else who ran into this issue like I did, mov eax, 4 is for 32 bit. If you're working on a 64 bit like I am the system call number is different. mov eax, 1
@@jtreg get a turre. Tape a laser on the turret. Code the sensor to point at any movement it sees so when somebody walks by it will point at the most movement. There are videos on this.
I suggest to grab another pair and create a full-duplex with the pairs on different channels to reduce risk of dropped data while not in rx mode! Good multiplexing should reduce your drop rate. Using your tx as the master and rx as the slave module on your spi bus with interrupts, you may obtain more reliable packet transfer. Also, using what you built as a callback with high priority (blocking your main) may also increase reliability. Also, careful youre only using the 900mhz ISM if youre in the US and that 433mhz is only used outside the US since LPD433 is govt use in the US. Thanks for posting this on the nrf905 units, this is a good outline for building code 🙏
Though these have been here a bit, I've just recently found them. Well explained, Davy. Should keep me busy for a while. I've always liked the closest to the metal. Thought C was as far as I could go with any proficiency, but maybe not. It is good practice for VIM.
I used your work here to help guide me for this Halloween's project, than you. :-D We have built a pirate ship prop and couldn't stand that the fog was only arbitrary . . . I wanted cannons! Finally finished it this weekend. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-G0Qqo2TOx_I.html The original ship: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HYN9FYybIeQ.html