
ElectricRCAircraftGuy's instructables
Achievements
- ElectricRCAircraftGuy followed Arnov Sharma
- ElectricRCAircraftGuy commented on ElectricRCAircraftGuy's instructable How to Get an Arduino Micros() Function With 0.5us Precision
- ElectricRCAircraftGuy commented on TrewRoad's instructable X9C103P Basic OperationView Instructable »
I just wrote this library for this family of digital potentiometers. It allows setting absolute or relative wiper positions, commanding voltage directly, setting a wiper position and reading back the commanded voltage, storing the wiper position into non-volatile memory for automatic recall after power cycles, etc. Check it out. I need some testers. https://github.com/ElectricRCAircraftGuy/eRCaGuy_X9C_digital_pot.
- ElectricRCAircraftGuy commented on ElectricRCAircraftGuy's instructable Restoring/Recharging Over-discharged LiPo (Lithium Polymer) Batteries!View Instructable »
Yaaaay! Glad to help!
- ElectricRCAircraftGuy commented on ElectricRCAircraftGuy's instructable Restoring/Recharging Over-discharged LiPo (Lithium Polymer) Batteries!View Instructable »
Afcataero, no, it's not safe to use it. To make it safe you'd have to remove the bad cell and either replace it, or reconnect the remaining 2 good cells to make it a 2S LiPo. The bad cell must not be used anymore. It is not safe. Note that modifying a battery should be done by a knowledgeable person with necessary soldering skills and aluminum soldering equipment, which requires a soldering tip you don't mind destroying, and special flux at a minimum. Aluminum cannot be soldered with regular solder unless already tinned. The tabs inside LiPo batteries are aluminum.
- ElectricRCAircraftGuy commented on ElectricRCAircraftGuy's instructable How to Get an Arduino Micros() Function With 0.5us Precision
SHORT ANSWER: Without testing it conclusively, I speculate 5us is the shortest pulse that can be measured by an ATmega328 mcu running at 16Mhz.-------------------------LONG ANSWER:Nick Gammon, an Arduino expert I've learned a lot from, states here (https://gammon.com.au/interrupts), that it takes around "4 μs" to enter an ISR (Interrupt Service Routing, or interrupt handler), and "around 5 µS to enter and leave an ISR". In order to measure a pulse, you need to interrupt on a pin change at the start of the pulse, enter the ISR, grab a timestamp (or use the input capture register if using the Timer 1 input capture feature, which is the best way to do it), and exit the ISR. Then, you need to do the same thing on the trailing edge of the pulse. Since it takes 4us to enter …
see more »View Instructable »SHORT ANSWER: Without testing it conclusively, I speculate 5us is the shortest pulse that can be measured by an ATmega328 mcu running at 16Mhz.-------------------------LONG ANSWER:Nick Gammon, an Arduino expert I've learned a lot from, states here (https://gammon.com.au/interrupts), that it takes around "4 μs" to enter an ISR (Interrupt Service Routing, or interrupt handler), and "around 5 µS to enter and leave an ISR". In order to measure a pulse, you need to interrupt on a pin change at the start of the pulse, enter the ISR, grab a timestamp (or use the input capture register if using the Timer 1 input capture feature, which is the best way to do it), and exit the ISR. Then, you need to do the same thing on the trailing edge of the pulse. Since it takes 4us to enter …
see more » - ElectricRCAircraftGuy commented on urucoug's instructable 7-day Option: How to Separate From the Air ForceView Instructable »
This information is so hard to find that I really think this article deserves more visibility. In an attempt to get it to be more "Googlable", I'm going to add some keywords in this comment that will hopefully get searched and found by the Google searchbots & web crawlers. Keywords: military separation, separate from the military, air force separation, separate from the air force, 7-day opt, 7-day option, seven day option, how to separate from the military, how to separate from the air force, how to seven day opt, how to 7-day opt, how to take the 7-day option, how to take the seven day option, how to leave the air force, how to leave the military, how to fill out paperwork to leave the military, what paperwork is required to leave the military, how to fill out paperwork to …
see more » - ElectricRCAircraftGuy commented on Inquiring Mind's instructable How to Enlist
Yes, I don't know the details, but many foreigners, who are not US citizens, serve in the US military. Please do some online research to find out how. Feel free to reply here or edit your question directly to provide links and help to others once you learn how.
View Instructable »For anyone interested in the flip-side: "How to Separate from the Air Force", which is also a difficult and complicated process, here's another useful instructable: https://www.instructables.com/7-day-Option-How-to-Separate-From-the-Air-Force/.
- ElectricRCAircraftGuy made the instructable 7-day Option: How to Separate From the Air ForceView Instructable »
I made it!!!!!!! YAAAAAAAAAY!!! I wish I would have had a nice tutorial like this when I was figuring things out, as not knowing how to do it also cost me an additional (and undesired/inadvertent) service commitment of > 2 years. Thanks for writing this up, as I think it will help a lot of people make more-informed decisions and more easily navigate the bureaucratic hell that exists all around them. It's hard enough trying to (1) make the decision to get out, (2) prepare for, qualify for, and obtain the skills necessary for a new job, (3) find a new job and, (4) make a new life for yourself outside the military, and yet sometimes the biggest hurdle (and also the FIRST hurdle)--which also feels insurmountable at times, is just figuring out *HOW* to try to get out. Most people don't real…
see more » - ElectricRCAircraftGuy followed urucoug
You are correct about *resolution*, *precision*, and *accuracy*. Thank you. I have since then mended my ways and begun using correct terms. :)