Search found 1681 matches

by zmemw16
Sun Feb 11, 2018 7:16 pm
Forum: Off topic
Topic: i2c device not visible
Replies: 10
Views: 168

Re: i2c device not visible

ok, it should have gone in off topic, i'd thought not into libs & hardware, hence general :-)

it was just a bit quirky and puzzled me.
actually that's probably a reasonable description of me as well. puzzled is pretty much the norm !

stephen
by zmemw16
Sun Feb 11, 2018 3:12 pm
Forum: Off topic
Topic: i2c device not visible
Replies: 10
Views: 168

Re: i2c device not visible

stephen wrote i've a few i2c 0.96" displays, pins in sequence vcc, gnd, sda, scl, all of the same type. and observing the missing resistors makes them i2c at 0x3c when nothing i2c is working, my response is to scan for i2c devices indirectly testing them one at a time. i've nver had 2 of these on th...
by zmemw16
Sun Feb 11, 2018 4:03 am
Forum: Off topic
Topic: i2c device not visible
Replies: 10
Views: 168

Re: i2c device not visible

@Roger what other i2c lib ? there ain't one ! the example code i ctl-c'd it and ctl-v'd in from a esp8266 example on the www, only has Wire.h in it - this is the esp8266 core so it's doubtful if they're also done the renaming of (Wire to HardWire ?) ? with 4k7 sip in circuit, i2c scanner 120 odd err...
by zmemw16
Sun Feb 11, 2018 12:55 am
Forum: Off topic
Topic: i2c device not visible
Replies: 10
Views: 168

Re: i2c device not visible

when i test displays it's one at a time, even on spi, but particularly so on i2c :) core it's the esp8266 official one - i did say the point i was getting at was that it worked when i removed the sip resistor pack, at least as far as the 'official' i2c scanner was concerned. not seen any snowflakes ...
by zmemw16
Sat Feb 10, 2018 10:32 pm
Forum: Off topic
Topic: i2c device not visible
Replies: 10
Views: 168

i2c device not visible

i've a few i2c 0.96" displays, pins in sequence vcc, gnd, sda, scl, so thought i'd test them. i also have some sip resistor packs, 4 off 4k7 with pin 1 as the common, so it adds pullups on scl & sda :) vcc is taken from the lolin v3 esp8266 board vin pin, hence in general not libs & h/ware :) i know...
by zmemw16
Sat Feb 10, 2018 1:12 pm
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 158
Views: 6489

Re: Andy's Postbag and random ebay links

by zmemw16
Fri Feb 02, 2018 10:17 pm
Forum: General discussion
Topic: how are multiple partitions handled
Replies: 3
Views: 103

Re: how are multiple partitions handled

oh i do delight in asking illuminating questions :lol:

i don't really care in the answers, i used to ask questions in a discussion group with the intention of destroying
a platform.

i've grown a bit, ok maybe not quite enough to not enjoy the answer
srp
by zmemw16
Fri Feb 02, 2018 7:41 pm
Forum: General discussion
Topic: how are multiple partitions handled
Replies: 3
Views: 103

how are multiple partitions handled

if i insert a sd card that has multiple partitions how are they handled ?
by zmemw16
Fri Feb 02, 2018 7:11 pm
Forum: STM32generic
Topic: [SOLVED] Using multiple I2C
Replies: 8
Views: 299

Re: [SOLVED] Using multiple I2C

sorry i missed that it was stm32generic.
to me at least that it works with the 'standard' is a good thing
stephen
by zmemw16
Fri Feb 02, 2018 4:24 am
Forum: STM32generic
Topic: [SOLVED] Using multiple I2C
Replies: 8
Views: 299

Re: [SOLVED] Using multiple I2C

thanks, compiled a treat.
note to self: read the Wire.h file and pay attention to the calls declared.
would be nice if SPI was as simple in initial setup SPI[3] ? ?
stephen