03/19/17

ESP-DSC Works Not Well!

So yesterday I was all happy that I got my prototype ESP-DSC working. This ended up being short lived as I realized this morning that while it does technically work, the ESP8266 can’t keep up with two medium resolution (2,500 CPR) encoders.

Ironically, I found out that the code was too slow when I started to optimize the code and I realized that the code I has was very very conservative. My original optimization was to speed it up, but maintain that conservative ethos. I figured while I was editing the code, I might as well also add a test to see if the ESP-12F was dropping interrupts… Continue reading

03/16/17

New low cost digital setting circles: ESP-DSC

So a few years ago, I announced TeensyDSC, project that brings telescope digital setting circles to the iPad and Android devices using WiFi. I’ve been using my TeensyDSC successfully with my telescope and SkySafari on an iPad for a few years, but one thing always bothered me about it: the “COGS” (cost of goods sold) of the TeensyDSC was really expensive: nearly $100. A lot of that cost was in two parts: the Teensy 3.1 ($20) and RN-XV WiFi module ($35).
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11/23/14

TeensyDSC – it works!

So last night I was finally able to test my custom digital setting circles setup on my AD12… it worked great!  I used the Astrosystems 10K encoder kit with the TeensyDSC and SkySafari on my iPad.  Here’s the photos of my setup:

My Digital Settings Circles setup using SkySafari on the iPad

My Digital Settings Circles setup using SkySafari on the iPad

Alt encoder and Wireless DSC module powered by a USB battery pack

Alt encoder and Wireless DSC module powered by a USB battery pack