Search found 1510 matches

by ahull
Fri Jun 23, 2017 7:15 pm
Forum: Welcome & FAQs
Topic: Saying hello from turkey
Replies: 7
Views: 93

Re: Saying hello from turkey

Data sheet for the HX711 is -> here <-
by ahull
Thu Jun 22, 2017 8:54 am
Forum: Hardware
Topic: No fix on u-blox neo 6m
Replies: 33
Views: 1119

Re: No fix on u-blox neo 6m

People sometimes post to the libraries section if they have ported a library, or if they find a particular library works with no changes. I should probably formalise this. I should probably do something similar for hardware, e.g. I tried one of those H Bridge motor controllers the other day, and it...
by ahull
Wed Jun 21, 2017 1:38 pm
Forum: General discussion
Topic: Speed sensor, need advice, How many pulses Per Rotation?
Replies: 5
Views: 83

Re: Speed sensor, need advice, How many pulses Per Rotation?

Pulses per rotation.. I suspect anything above and including one would be sufficient. Adding more pulses would give better resolution, at the expense of additional interrupts per rotation. Your ISR would then simply record something simple every pulse (milis-last reading perhaps) and it would be up ...
by ahull
Tue Jun 20, 2017 1:30 pm
Forum: General discussion
Topic: Combining Blink & Count to the bootloader
Replies: 29
Views: 278

Re: Combining Blink & Count to the bootloader

How about spewing the build info about the bootloader on the serial output? Something like: "Success! Bootloader version blah and blah is installed." Then maybe spew out the information about the leds used and buttons used? And a short tutorial on how to use all the features. Good move, the tutoria...
by ahull
Tue Jun 20, 2017 12:35 pm
Forum: General discussion
Topic: Combining Blink & Count to the bootloader
Replies: 29
Views: 278

Re: Combining Blink & Count to the bootloader

As I understand it, the idea is to include the blinky, so that people are less uncertain about whether the booloader worked or not. Currently if you install just the bootloader, and fire the board on your PC, the serial port does not show up, and there is really nothing to suggest you were successfu...
by ahull
Tue Jun 20, 2017 12:25 pm
Forum: General discussion
Topic: Combining Blink & Count to the bootloader
Replies: 29
Views: 278

Re: Combining Blink & Count to the bootloader

I was using makebootloader in a general sense, rather than a Makefile, but I guess we could possibly use the abilities of make to do something like make bootloader maple or make bootloader bluepill or make bootlader PB1 PC13 or make bootloader $BUTTON $LED EDIT: Actually Make uses the syntax make ta...
by ahull
Tue Jun 20, 2017 11:29 am
Forum: General discussion
Topic: Combining Blink & Count to the bootloader
Replies: 29
Views: 278

Re: Combining Blink & Count to the bootloader

Could you not specify the two pins for the button and the LED in the make script for the bootloader and the blink, making a bootloader then becomes something like. mkbootloader BUTTON_PIN LED_PIN, which calls the routines to compile the bootloader and blink, and then merges them together into a sing...
by ahull
Sun Jun 18, 2017 4:54 pm
Forum: Builds and Announcements
Topic: Forum has been updated to PHPBB 3.2
Replies: 10
Views: 191

Re: Forum has been updated to PHPBB 3.2

For what its worth, I cleared site cookies, but nothing else and it all seems to work perfectly for me.
(Mozilla Firefox 54.0 on Ubuntu 16.04.2 LTS )
by ahull
Fri Jun 16, 2017 11:27 pm
Forum: Projects
Topic: Motion and speed detector
Replies: 27
Views: 399

Re: Motion and speed detector

RogerClark wrote: BTW. Any ideas how to set the steady state calibration
With a resistive ladder DAC perhaps -> https://en.wikipedia.org/wiki/Resistor_ladder
by ahull
Fri Jun 16, 2017 10:13 pm
Forum: Projects
Topic: Motion and speed detector
Replies: 27
Views: 399

Re: Motion and speed detector

Detecting change is a start I guess. My plan B would be to use two of these devices, as I described previously, We would get an initial change at the output of OpAmp1, but the RC network in its inverting output, would soon charge up, to negate the change in the input from the OSC. I wonder if the ti...