Search results for:

The ESP32 dev board is back in stock at adafruit:

https://www.adafruit.com/products/3269

68 or so in stock.

@Ollie
For me the international postage offered shipping of about $US15 was more reasonable than the UPS. I added a pi zero and bluetooth modules so my order too - so that when the puck is out I'll have a bluetooth USB for one of my pi boards

You need to use the module in 2 stages.

The first is to use the write module to load your module into flash. You can add it as a string, or use the wget method to load it.
Once it is in flash you don't need this loader script.

Then use the flash item method to pull the string from flash and add to the module cache.

In your example you would not use the 2nd require, as the first would have already added it.

The error you are getting is due to the module not getting added to then flash with the write method first, so the retrieved string is empty so the module.add fails

Nice.

Another way of doing the graphic for the browser, would be to use the xbm format, which uses C declarations to define the graphics, so you output the width and height and an array.

The SyPi version comes out at the end of the month. This uses the sigfox protocol for very long distant (limited to 12 bytes every ten minutes). This next work is getting rolled out in New Zealand so I'm keep to get one of these boards.

Where are people getting their dev boards?

Adafruit now has a waiting list, and the lopi (with micro python) shipping to new Zealand is £38 pounds!

I don't think the analogue Input on the esp8266 works properly if wifi is on, as interupts affect the reading of the adc value. If you turn wifi off, it might work...

How are you powering sonoff when it's not connected to the commuter via USB?

Does it have it's own dc convertor from mains voltage?

Wi fi won't come up if the power supply is not powerful enough - I think you need around 600ma.

And - for modules
http://forum.espruino.com/conversations/290975/#comment13186302

@Kolban

Take a look at this:
http://forum.espruino.com/conversations/283045/

I'll be happy to help where I can. The esp8266 has been a bit frustrating fighting against heap and rom firmware sizes, so having those constraints removed would be great.

It would be even better if Gordon produced a board with the module, so that it would not be a second class citizen... And be a part of the espruino family.

The xbm (X bitmap) format might be of use. It's monochrome and is like a declaration in c that you could convert to JavaScript, the output is text:

https://en.m.wikipedia.org/wiki/X_BitMap

[#define](https://forum.espruino.com/search/?q=%23define) test_width 16
[#define](https://forum.espruino.com/search/?q=%23define) test_height 7
static char test_bits[] = {
0x13, 0x00, 0x15, 0x00, 0x93, 0xcd, 0x55, 0xa5, 0x93, 0xc5, 0x00, 0x80,
0x00, 0x60 };

@JumJum
If you look at the Travis.yml file you will get the link to @tve 's tvx file that has the 2.0 sdk.

There is already this one:

https://github.com/espruino/Espruino/blob/master/Dockerfile-esp8266

It just needs the sdk updated as far as I'm aware...

You might need to set the RELEASE=1 so that extra bedbug code does not get added....

Did you build the sdk from scratch - or use @tve 's tarball used in the Travis file?

I'm doing a build from scratch now to test - will check in the morning...

Perhaps the concept of a run once script that gets loaded as part of the flashing, and this could be used to set the wifi and save?

It could be used on other boards to init as well..

I thought the espruino math libs were no longer used and these were now linked to standard libs? I do recall when this happened there was a lot of space freed up in the total firmware sizes.

Perhaps the bigger question is how many are using 512k roms vs 4mb.

The restriction applies to 512k, and as this is the lowest common denominator and there is a common build, it applies to all esp8266

Once the ESP is connected to the network, a wifi.save() stored the ssid and pwd in EPROM- it will auto connect net boot.

The workaround if mDns is not available then you can add the Mac address to your router and use the deco reservation, so tht it gets a known ip. Then you can set the hostname in the wifi init, and any browser can refer to the ESP by hostname.

@ManoBiletsky

So looks like it is wired:

DO  NodeMCU.D6  GPIO12
SCK NodeMCU.D5 GPIO14
DI  NodeMCU.D7 GPIO13
CS  NodeMCU.D2 GPIO4

var s = new SPI();
s.setup({mosi:NodeMCU.D7,miso:NodeMCU.D­6,sck:NodeMCU.D5});
E.connectSDCard(s,NodeMCU.D2);

It looks like it should work ok.

The SD card has been formatted with the correct File system?

@tve
Is version 2.0 sdk larger - is that why the rom size had to drop, and therefore the graphics library?

Please take a picture and document your wiring, otherwise this is just guess work.

The line:
https://github.com/espruino/Espruino/blob/master/Makefile#L1966

$(Q)COMPILE=gcc python $(APPGEN_TOOL) $(USER1_ELF) 2 $(ESP_FLASH_MODE) $(ESP_FLASH_FREQ_DIV) $(ESP_FLASH_SIZE) 0 >/dev/null

This should be generating the eagle.app.flash.bin file.

$(Q) gets evaluated - normally it it set to be empty - so it is set to Quiet - which suppresses the output.

We can set the output to verbose, so you can see what your error is:

make V=1 ... so in our case here we are using a script, so:

./build-esp-4mb.sh V=1

This runs the build in verbose mode, so you will be able to see where the error is.

In my case I see:

COMPILE=gcc python /mnt/c/ubuntu/esp-open-sdk/sdk/tools/gen_appbin.py espruino_esp8266_user1.elf 2 0 15 4 0 >/dev/null

This implies there is something wrong with your python setup.

As python is used to build the wrapper files - in your case I would have thought this would have failed earlier.

What is your output from ?:

root@OFFICE-PC:/mnt/c/ubuntu/Espruino# python -V
Python 2.7.6

have you tried a make clean and then a make?

What env have you set up - this is my build script:

root@OFFICE-PC:/mnt/c/ubuntu/Espruino# cat build-esp-4mb.sh
#! /bin/bash
export ESP8266_BOARD=1
export FLASH_4MB=1
export ESP8266_SDK_ROOT=/mnt/c/ubuntu/esp-open-sdk/sdk
export PATH=$PATH:/mnt/c/ubuntu/esp-open-sdk/xtensa-lx106-elf/bin/
export ESPHOSTNAME=espruino:88
make $*

The last lines output look like:

LD espruino_esp8266_partial.o
LD espruino_esp8266_user1.elf
LD espruino_esp8266_user2.elf
To disassemble: xtensa-lx106-elf-objdump -d -l -x espruino_esp8266_user2.elf
Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  3 .text         00006cd0  40100000  40100000  00002f10  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  4 .irom0.text   0006ab94  40201010  40201010  00009be0  2**4
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
To disassemble: xtensa-lx106-elf-objdump -d -l -x espruino_esp8266_user1.elf
xtensa-lx106-elf-objdump -d -l -x espruino_esp8266_user1.elf >espruino_esp8266_user1.lst
  4 -rwxrwxrwx 1 root root   2204 Sep 17 10:10 eagle.app.v6.data.bin
428 -rwxrwxrwx 1 root root 437140 Sep 17 10:10 eagle.app.v6.irom0text.bin
 12 -rwxrwxrwx 1 root root   9616 Sep 17 10:10 eagle.app.v6.rodata.bin
 28 -rwxrwxrwx 1 root root  27856 Sep 17 10:10 eagle.app.v6.text.bin
** user1.bin uses  476884 bytes of 491520 available

I'm not sure why you build is failing on the user1 target.

@Gordon
The images are fine, however the 1.5 boot loader bin is missing, so you can't flash, unless you add this externally.