there is no arguments[] like in c just do
foo = (a){return ++a};
this is a very nice place for lookup syntax https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Functions
foo = (a){return ++a};
this is a very nice place for lookup syntax https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Functions
The first example is a bug in the Espruino's implementation, but I can't seem to find where in the code it is defined such that I can fix it
@MaBecker, I have a question about lcd unbuff. I have 128x64 oled (mono) display probably SH1106, but not sure. it worked with some custom Jsvascript oled module here. I want to have scrolling feature and in my current module there is a performance issue when scroll
is it possible to have get unbuff lcd done for mono colored lcd?
do you have an example JS code where i can see how to use lcd_spi_unbuf class from JavaScript?
see implementation https://github.com/espruino/Espruino/blob/master/libs/graphics/lcd_spi_unbuf.c#L132 disp_spi_transfer_addrwin and lcd_spi_unbuf_setPixel, lcd_spi_unbuf_fillRect methods
hmm. that explains why it wasn't working. I want to have smooth scrolling screen, that I know is working on watch stock firmware. But somehow I am not able to get it working on Espruino JavaScript code. I am using buffer to fill the data and flip to write to OLED, this is slow. It is also very slow when I use Espruino graphics scroll() function. So if I use DMA to write directly to OLED?
I also see that SH1106 also supports hardware scrolling, but it is also not working...
There is an Adafruit library that does but it is C
I also saw @fanoush is using some Native C code for DMA but I think it is for colored display
also DMA won't help you if you need to send lot of small transfers (command+data), the SSD1306 128x32 oled in DS-D6 can do linear mode and send whole screen as one data fill, that may work for scrolling, however the 128x64 one that is e.g. in HX03W is not SSD1306 and screen is updated as several separate pages, so that cannot be done as one quick DMA transfer
wondering how developer of the original app managed the smooth scroll...
any way, on the other note my STLink V2 started working again. Not sure what happened but it can now connect to the watch...
I have ordered another one, just waiting for that
lcd_spi_unbuf can also be used for a ILI9431
On ESP32 2v04 it seems to always return =0.93255273901
On Puck, it seems to be indeed random (at least by the time I can connect to it)
Just
reset(1), saved var bla = Math.random(); to flash, and reset the device
>Math.random()
=0.93255273901
>reset(1)
Erasing saved code.
Done!
=undefined
WARNING: gap set scan error code = 103
WARNING: set rssi scan not implemeted yet
____ _
| __|___ ___ ___ _ _|_|___ ___
| __|_ -| . | _| | | | | . |
|____|___| _|_| |___|_|_|_|___|
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2v07.24 (c) 2019 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
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>Math.random()
=0.70772355874
My esp32 mqtt disconnect issue was due to this: the big MQTT library creates a "random" client id. But wasn't r
Random at all with esp32. So two ESP32 kept kicking out each other :)
lucky me
