Hi Everyone,
Every reward now below £190 has now been shipped except for a couple where we haven't been supplied addresses and the handful of people who haven't paid at all.
To the important bit. One or two of you may have seen discussion on the EVE forum about I2C addresses and pull ups just before XMAS. So here's what happened......
We found out really late that the SPI on the EnOcean device was master only and we needed slave. This is because there's only one UART on the Pi (used by Xbee socket), we needed to add an I2C to UART bridge chip. This was right before the final design which went to the PCB house. In the rush we could not check it worked and what wasn't on the suggested layout was a couple of pull ups, this means the chip doesn't turn on. Ouch, FOUL number one. Then once we got the boards and the full compliments of parts (we needed the cash from KS because there was about £11K of radios, it took about 6 weeks to get the cash out of KS, not what they promise). So we built one and found one of the other I2C devices had the same address. Ouch FOUL two.
So we had a dilemma, either ship and claim "we said you might need the odd green wire" and some instructions to mod the circuit, offer to ship or to fix (reducing the effort), redesign the board (weeks of waiting) or fix all of them prior to shipping (a right pain in the rear).
We talked each through and universally said, although it would be painful, we should mod every single £190 and upwards reward before sending.
So from Jan 2nd until Tuesday this week, Ian has been hunched over a soldering iron doing all the mods.
Sorry we didn't get to ship before Xmas as we had planned (we will start this week) but I hope you fully support us in our decision to mod before sending.
A final note on time-scales, we've tried our utmost to do everything as fast as we could and are really sorry we only hit the £20 reward on time and that each successive reward has taken around a week longer to sort than planned. With the Christmas close-down that added nearly another 2 weeks the highest rewards are now over a month late.
Sorry guys, hope you can see it wasn't for effort, swearing and tears
Happy new year to everyone
Miles