Re: [time-nuts] [Thunderbolt Monitor

2012-02-28 Thread MSproul
About a year ago I built a Thunderbolt monitor using the Digilent Inc. chipKIT Uno32 and a 4 x 20 display from Modern Device. The Digilent chipKIT is a 32-bit- microcontroller that is compatible with many Arduino code examples, and reference materials and is pin compatible with many

[time-nuts] Tbolt temperature question

2011-04-04 Thread msproul
What is the normally expected oven temperature range of the Thunderbolt? Over the past year the temperature of my Tbolt, as reported by Lady Heather, has slowly increased from the low 40s C to the high 40s. The maximum temperature has now crept up to 50 C and is shown today at 50.8 C. At 50 C

Re: [time-nuts] Fluke monitor

2010-05-12 Thread msproul
My fluke.l monitor stopped working today ... Mine stopped yesterday The monitor is a recent model and has the regulator. So does mine and I run the board from a 9V regulator. The display is built into the same box as the gpsdo I left it on overnight, Mine has been on continuously for

[time-nuts] Thunderbolt temperature anomaly

2010-03-30 Thread msproul
I have a Tbolt (labeled Rev. E, 5/31/05) that seems to be working properly, except for the temperature display in Lady Heather. When I start the program the display will come up typically showing the temperature as a straight line at 39.749981C and DAC voltage is -0.073xxx. The temperature