August 31, 2017
Members of ESP32.com forum will recognise Neil Kolban as one of its more prolific commentator and posters. As well as his great contributions to the forum he has also put together a great book on the ESP32 hardware and software. He constantly reviews and keeps it up to date so its a bastion of ESP32 knowledge. You can find a copy here:
July 27, 2017
In a previous post on setting MIDI baud-rates on the RPi I used a slight of hand (i.e. init_uart_clock etc.) to trick the RPi in setting the UART to a 31250 baud needed for MIDI. While browsing the Raspberry Pi forum I spotted this nugget of information from PhilE:
in config.txt add:
This combination does three things:
1) Enables the UART. It isn’t strictly necessary when combined with pi3-miniuart-bt
2) Reassigns the weaker UART (ttyS0) for Bluetooth and frees ttyAMA0 for our MIDI interface
3) Using an DT overlay to achieve the same UART clock settings as our init_uart_clock etc. trick
It makes things a lot simpler 🙂
May 29, 2017
After a couple of failed attempts I’ve finally got my hands on a ESP32 module.
My first couple of ebay purchases failed to arrived, which is becoming a regular thing with ebay at the moment.
I’ve got a couple of ideas for using the WIFI in a standalone WIFI hub, so its time to fire up the soldering iron
April 26, 2017
Maker Faire UK was another great success this year
March 28, 2017
It’s hard to believe but Maker Faire UK is almost upon us again.
It’s on this Saturday and Sunday 1st and 2nd April at the Centre for Life in Newcastle.
Full details are here:
I’m planning on taking my latest Raspberry Pi Synth along, something I’ve called unimaginatively PiZynth. As well as the pi synth I’ll have my Pi based R-Kade Mini.
So two full days of maker stuff to look ahead too. 🙂
February 25, 2017
Following on from last months post about my SoB DB9 breakout board I’ve design a few of more SoB breakout boards using the DP5050 footprint.
The first is a 2-channel Relay Board. It has two relays with LED’s to indicate when they are active. Using it is pretty easy as it features the choice of screw terminals or pin headers to interface to it.
The next is a universal RS232 breakout. I call it universal as all the pins (8 in total but not ground) from a 9-way RS232 DB9 are broken out onto pin headers. To connect up to these are the 4 signals (T1,T2,R1 and R2) from a MAX232 (or equivalent) RS232 chip. So you can swap around the transmit and receive and handshake signals as you like.
The next board is just a classic prototyping board. There’s not much too say about this board.
The last board is a symmetric power supply for rectify AC voltage into positive and negative DC supply rails. I’m hoping to use this for a audio project I’ve got in the works.
Dangerous Prototypes (DP) have a great page describing the various PCB sizes here:
As usual you can find them on my Tindie page here