Search found 1252 matches

by zmemw16
Thu Jul 20, 2017 3:55 pm
Forum: Projects
Topic: STEP GPS LOGGER, GPS CLOCK, Bicycle computer and more
Replies: 6
Views: 121

Re: STEP GPS LOGGER and more

i put 'military gps resolution' into google, first is The United States government currently claims 4 meter RMS (7.8 meter 95% Confidence Interval) horizontal accuracy for civilian (SPS) GPS. Vertical accuracy is worse. Mind you, that's the minimum. Some devices/locations reliably (95% of the time o...
by zmemw16
Thu Jul 20, 2017 4:53 am
Forum: General discussion
Topic: Using USART1 PA11 and PA12
Replies: 2
Views: 41

Re: Using USART1 PA11 and PA12

PA9 TX
PA10 RX
datasheet has the pinouts, also most schematics
try searching forum for USART1 or Serial1
i use PA9/PA10, also PA2/PA3 with almost "by default" regularity
with a #define mySerial Serialx line, you can just use mySerial consistently and change with one edit and moving 2 wires.
stephen
by zmemw16
Wed Jul 19, 2017 11:23 pm
Forum: Builds and Announcements
Topic: Forum has been updated to PHPBB 3.2
Replies: 14
Views: 368

Re: Forum has been updated to PHPBB 3.2

rather infrequently, i'll get a timeout or a not valid message when i press submit.
i put it down to the time i take composing a post, second is usually someone beating me to reply.
if i suspect i'll get it i do a ctl-A ctl-C and repeat the post.

a missing post, it's a big maybe 1 perhaps 2

stephen
by zmemw16
Tue Jul 18, 2017 9:30 pm
Forum: General discussion
Topic: pricing disparity implies higher forward prices?
Replies: 2
Views: 59

Re: pricing disparity implies higher forward prices?

at some point, rather depends on the size of the chip mountain.
by zmemw16
Tue Jul 18, 2017 2:12 am
Forum: Problems with libraries
Topic: SparkFun_ToF_Range_Finder-VL6180_Arduino_Library
Replies: 6
Views: 73

Re: SparkFun_ToF_Range_Finder-VL6180_Arduino_Library

toddled off to adafruit, found this GPIO - this is a pin that is used by the sensor to indicate that data is ready. It's useful for when doing continuous sensing. Note there is no level shifting on this pin, you may not be able to read the 2.8V-logic-level voltage on a 5V microcontroller (we could o...
by zmemw16
Mon Jul 17, 2017 11:58 pm
Forum: Hardware
Topic: STM32F103C8 + FT811 Screen + SD Card Reader
Replies: 1
Views: 48

Re: STM32F103C8 + FT811 Screen + SD Card Reader

nice psu, for the screen i take it :D
can you detail the sdcard module? curious if it's got resistors etc
stephen
by zmemw16
Mon Jul 17, 2017 2:36 pm
Forum: Projects
Topic: stm32 car fuel injection ecu
Replies: 6
Views: 248

Re: stm32 car fuel injection ecu

grey to black and potentially explosive :?: :D
by zmemw16
Mon Jul 17, 2017 1:21 pm
Forum: Projects
Topic: stm32 car fuel injection ecu
Replies: 6
Views: 248

Re: stm32 car fuel injection ecu

what happens when they take the car for an 'Official Test' ?
oh hang on, in europe the manufacturers have a special mode for the mpg and pollution checks. :o
stephen
by zmemw16
Mon Jul 17, 2017 1:09 pm
Forum: STM32generic
Topic: STM32GENERIC Arduino implementation
Replies: 12
Views: 234

Re: STM32GENERIC Arduino implementation

surely that's precisely the current state, Adafruit_XXX needs Adafruit_GFX etc. i've installed a few others as well and have had to go round that loop more than once as then some of the 'needed' libraries have their own 'needs', so reading the source of the original set is not always enough to detai...