<div dir="ltr">The Walrus has a MicroUSB on the back, so you can upload new firmware without needing an ISP. As far as I am aware, you still need an ISP for the bootloader though. (I'll let Mark or Deniz correct me on that one)<div><br></div><div>Mark (too many Mark's - everyone online calls me Cyl, so that'll do here too)</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 6 January 2017 at 12:11, Simon Hobson <span dir="ltr"><<a href="mailto:linux@thehobsons.co.uk" target="_blank">linux@thehobsons.co.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">Jason Pearce <<a href="mailto:jason@pearce.org.uk">jason@pearce.org.uk</a>> wrote:<br>
<br>
> Reading the wiki, it suggests firmware/bootloaders can be programmed using a walrus<br>
> <a href="https://github.com/opentrv/OTWiki/wiki/REV11-Firmware-Loading-Walrus" rel="noreferrer" target="_blank">https://github.com/opentrv/<wbr>OTWiki/wiki/REV11-Firmware-<wbr>Loading-Walrus</a><br>
><br>
> I have purchased a "USBtinyISP V4 AVR ISP Programmer" - apart from simplicity of programming the various boards, does the walrus provide any other functionality that the avr doesn't ?<br>
<br>
</span>I'm glad you asked that, because it prompts me to ask something I wasn't sure about.<br>
<br>
Looking at the photos in that Wiki, it looks like there's a 6 pin ribbon cable & connector like that on the AVR programmer - so I'm assuming there's "something else" not mentioned to connect between USB (can't see anything USB on the Walrus board) and the board.<br>
<br>
So do we need some sort of USB-<something> adapter as well as the Walrus board ?<br>
<div class="HOEnZb"><div class="h5"><br>
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