Commit Graph

862 Commits

Author SHA1 Message Date
Philip Gladstone 017b4637c2 Adds uart.getconfig(0) to get the current uart parameters (#1658) 2016-12-11 20:35:04 +01:00
vsky 12a7b1c239 BME280: fixing humidity trimming parameter readout bug (#1652) 2016-12-09 21:19:58 -05:00
Philip Gladstone 79013ae79a Improve SNTP module: Add list of servers and auto-sync [SNTP module only] (#1596) 2016-12-04 21:03:49 +01:00
Arnim Läuger ea7ad21318 move init_data from .text to .rodata.dram section (#1643) 2016-12-04 20:19:51 +01:00
ffedoroff 9f9fee9008 add new rfswitch module to handle 433MHZ devices (#1565) 2016-12-01 22:19:01 +01:00
Yury Popov 83eec61874 Fix iram/irom section contents (#1566) 2016-12-01 22:14:20 +01:00
Philip Gladstone 00b356be84 HTTP module can now chain requests (#1629)
* Fix up the HTTP module to use less memory
2016-12-01 22:13:33 +01:00
Jason Follas a48e88d4a3 EUS bug fixes (#1605)
- Bug fixes and improvements
- FIX: Ensure that station is enabled before doing network scan (this seems to be the cause of #1578)
- FIX: Check if state == NULL on enduser_setup.stop()
- IMPROVEMENT: Look for both enduser_setup.html.gz and enduser_setup.html as valid filenames, for semantic reasons
- IMPROVEMENT: Show a generic status message on HTML page if failure occurred before user even submitted data (i.e., would have come from previously stored config when the STA was started by EUS)
2016-12-01 22:12:47 +01:00
Marcel Stör c54bc05ba6 Fix macro as suggested in #1548 2016-11-19 21:17:50 +01:00
Arnim Läuger c70dc7497e Handle error condition in file.read() (#1599)
* handle error condition in file.read()

* simplify loop initialization
2016-11-19 10:36:00 -05:00
Mariusz Kryński 59b9b3e26f support for custom websocket headers (#1573)
Looks good to me. Thank you.

Also:
 - allow for '\0's in received messages

* add client:config for setting websocket headers

Also:
 - headers are case-insensitive now

* fix docs

* fix typo

* remove unnecessary luaL_argcheck calls

* replace os_sprintf with simple string copy
2016-11-19 10:35:20 -05:00
Marcel Stör 1d0cf5e8d0 Virtual u8g display driver for RFB/VNC support (#1514)
* add u8g.fb_rle display
* move comm drivers to u8g_glue.c
* disable fb_rle per default
2016-11-14 13:40:45 +01:00
zelll 798759950f i2c - allow slave stretching SCL (just loop and check) (#1589) 2016-11-13 10:16:07 -05:00
Arnim Läuger fdc766be9f fix vfs_lseek() result checking in enduser_setup and clarify SPIFFS_lseek() return value (#1570) 2016-11-08 22:27:12 +01:00
Jason Follas 058777ea60 Eus channelfix (#1583)
Squashed commits included:

Bug fixes and final implementation
- Added Content-Length: 0 to all headers
- Endpoint name checks not using trailing space so cache-busting techniques can be used (i.e., append a nonce to the URL)
- Track when connecting so APList scan doesn't take place during (which changes the channel)
- More debugging output added to assist in tracking down some issues

Added /status.json endpoint for phone apps/XHR to get JSON response

Station Status caching for wifi channel workaround + AJAX/CORS
- During checkstation poll, cache the last station status
- Shut down the station if status = 2,3,4 and channel is different than SoftAP
- Add Access-Control-Allow-Origin: * to endpoint responses used by a service
- Add a /setwifi GET endpoint for phone apps/XHR to use (same parameters as /update endpoint). Returns a JSON response containing chip id and status code.
- Add handler for OPTIONS verb (needed for CORS support)

Wi-Fi Channel Issue Workaround
- Do a site survey upon startup, set SoftAP channel to the strongest rssi's channel
- Compare successful station connect channel to SoftAP's. If different, then defer the Lua success callback to the end. Shut down Station and start the SoftAP back up with original channel.
- After the 10 second shutdown timer fires, check to see if success callback was already called. If not, then call it while starting the Station back up.

HTTP Response and DNS enhancements
- If DNS's UDP buffer fills up, keep going as non-fatal. It's UDP and not guaranteed anyways. I've seen this occur when connecting a PC to the SoftAP and every open program tries to phone home at the same time, overwhelming the EUS DNS server.
- Support for detecting/handling pre-gzipped `enduser_setup.html` (and `http_html_backup`) payload. Nice for keeping the size of the `state->http_payload_data` as small as possible (also makes minimization not as critical)
- Corrected misuse of HTTP 401 response status (changed one occurrence to 400/Bad Request, and changed another to 405/Method Not Allowed)

* Normalized formatting (tabs-to-spaces)
* Added documentation
* Corrected misuse of strlen for binary (gzip) data.
* Added NULL check after malloc
2016-11-08 21:58:33 +01:00
Arnim Läuger a0e2e0ca37 Implement object model for files (#1532) 2016-11-08 21:02:51 +01:00
Philip Gladstone b74a9dbdf7 Make the MQTT PING functionality work better. (#1557)
Deal with flow control stopped case
2016-11-08 21:00:17 +01:00
dnc40085 73773fd8a5 Update to the wifi module (#1497)
* Removed inline documentation for several functions and update comments
Since documentation is now part of the repository, the inline
documentation just adds to the already huge wifi.c

* Wifi module: add new functionality, update documentation

Functions Added:
wifi.getdefaultmode(): returns default wifi opmode
wifi.sta.apchange(): select alternate cached AP
wifi.sta.apinfo(): get cached AP list 
wifi.sta.aplimit(): set cached AP limit
wifi.sta.getapindex(): get index of currently configured AP
wifi.sta.getdefaultconfig(): get default station configuration
wifi.ap.getdefaultconfig(): get default AP configuration

functions modified:
wifi.setmode: saving mode to flash is now optional
wifi.sta.config: now accepts table as an argument and save config to
flash is now optional
wifi.sta.getconfig: added option to return table
wifi.ap.config: save config to flash is now optional
wifi.ap.getconfig: added option to return table

Documentation changes:
- Modified documentation to reflect above changes
- Removed unnecessary inline documentation from `wifi.c` 
- Updated documentation for `wifi.sta.disconnect`to address issue #1480 
- Fixed inaccurate documentation for function `wifi.sleeptype`
- Added more details to `wifi.nullmodesleep()`

* Move function `wifi.sleeptype()` to `wifi.sta.sleeptype()`

* Fixed problem where wifi.x.getconfig() returned invalid strings when
ssid or password were set to maximum length.

* fix error in documentation for `wifi.sta.getapindex`

* Renamed some wifi functions
wifi.sta.apinfo -> getapinfo
wifi.sta.aplimit -> setaplimit 
wifi.sta.apchange -> changeap

also organized the wifi_station_map array
2016-11-06 20:51:01 +01:00
Philip Gladstone 77b2e85d09 Add support to mix ws2812.buffer objects. (#1575)
* Add load/dump/mix/power operations on the buffer object
* Calculate the pixel value in mix and then clip to the range.
* Fixed the two wrong userdata types
* Added a couple more useful methods
* Add support for shifting a piece of the buffer.
* Fix a minor bug with offset shifts
2016-11-05 13:53:42 +01:00
Arnim Läuger f0780e399e Add ssd1306_128x32 for U8G (#1571) 2016-10-30 00:19:04 +03:00
Marcel Stör 7c3f76009a Change HTTP failures from debug to error messages (#1568)
* Change HTTP failures from debug to error messages

* Add tag to HTTP error messages

* Create macro for error msg and improve dbg msg
2016-10-29 14:04:23 +02:00
Arnim Läuger 9db07783f4 Remove luaL_buffer from file_g_read() (#1541)
* remove luaL_buffer from file_g_read()
- avoid memory leak when function gets terminated by lua_error
- skip scanning for end_char when reading until EOF
* attempt to free memory in any case
2016-10-28 17:32:12 +03:00
Philip Gladstone 2227383843 Small improvement to http client (#1558) 2016-10-27 14:07:04 +03:00
Philip Gladstone ebb537c502 Version of printf that doesn't suffer from buffer overflows (#1564) 2016-10-27 09:38:47 +03:00
Philip Gladstone 0ee1ab68b0 Improve reliability of FS detection. (#1528)
* Version to make filesystem detection more reliable
* Improve bad fs detection
2016-10-25 22:51:59 +02:00
Arnim Läuger 020afdcf33 avoid task queue overrun for serial input (#1540)
Thank you.
2016-10-17 21:56:38 -04:00
Philip Gladstone f9533ed85a Reduced LUAL_BUFFERSIZE to 256. Should free up some stack (#1530) 2016-10-16 21:18:03 +09:00
vsky 880bd9850b Somfy/TELIS driver (#1521) 2016-10-14 07:49:58 +09:00
Arnim Läuger 101eb201ab add map ids for flash sizes 32m-c2, 64m, 128m in user_rf_cal_sector_set() (#1529) 2016-10-13 16:51:48 +09:00
Arnim Läuger b8e00120b6 fix dereferencing NULL pointer in vfs_errno() (#1539) 2016-10-13 16:48:37 +09:00
Philip Gladstone 025805b0e8 Fixes the gpio.serout problem from #1534 (#1535)
* Fix some issues in gpio.serout
* Minor cleanup
2016-10-11 21:51:00 +09:00
Jim Paris 407eaa45ac Replace hardcoded init data with generated data from SDK
The esp_init_data_default.bin is now extracted from the SDK (and its
patch file, if present), and the contents are automatically embedded
into user_main.o.
2016-10-04 13:11:34 -04:00
Johny Mattsson 088d2c3820 Reimplemented esp_init_data_default.
To work around the pesky "rf_cal[0] !=0x05" hang when booting on a chip
which doesn't have esp_init_data written to it.

It is no longer possible to do the writing of the esp_init_data_default
from within nodemcu_init(), as the SDK now hangs long before it gets
there.  As such, I've had to reimplement this in our user_start_trampoline
and get it all done before the SDK has a chance to look for the init data.
It's unfortunate that we have to spend IRAM on this, but I see no better
alternative at this point.
2016-10-04 12:04:09 +11:00
Johny Mattsson 90c6e86872 Fix start-up race between UART & start_lua. (#1522)
Input during startup (especially while doing initial filesystem format)
ran the risk of filling up the task queue, preventing the start_lua task
from being queued, and hence NodeMCU would not start up that time.
2016-10-03 10:19:20 +02:00
Arnim Läuger a86fb74c34 implement file.size for spiffs (#1516)
Another bug squashed!
2016-10-02 21:32:48 -04:00
devsaurus c2732803a5 disable fb_rle per default 2016-09-28 22:02:50 +02:00
Philip Gladstone 04e93b2433 Add the esp-gdbstub to enable debugging (#1506)
* Initial version of gdbstub support

* Add DEBUG argument to Makefile to add more debug data and turn off -Os

* Add the output redirection handling

* Added documentation

* Cleaned up the english a bit

* Make gdboutput actually trap all the output

* Review comments
2016-09-21 11:38:12 +10:00
devsaurus 837cf20633 move comm drivers to u8g_glue.c 2016-09-20 23:59:23 +02:00
devsaurus 492ee578ae add u8g.fb_rle display 2016-09-20 23:37:13 +02:00
Johny Mattsson a112296850 Added crypto.new_hmac() feature. (#1499)
Docs for crypto module refactored for easier maintenance.
2016-09-16 17:46:39 +02:00
Luís Fonseca 19f80abb32 Fix float math.pow when number was negative and power was odd (#1492) 2016-09-07 22:45:06 +02:00
Arnim Läuger b02450f5e0 fix debug compile (#1487) 2016-09-06 12:28:46 +10:00
Arnim Läuger ecf8bd98d6 Add FatFs and SD card support (#1397)
* Add FatFs
* enable BUILD_FATFS for all-module build
* push vfs into rest of firmware
* align maximum filename length
* increase timeout for acmd41 during card initialization
* switch from DOS to Unix path semantics chdrive() is substituted by chdir()
* update to fatfs R.012a incl. patches 1-6
* add callback for rtc provisioning in file
* update docs
2016-09-05 20:17:13 +02:00
Philip Gladstone 99cd2177bb Make struct.unpack wrapped in setlist actually work (#1486)
Fixes #1434.
2016-09-05 11:16:27 +10:00
Yury Popov be263dacde Set espconn's secure buffer size once at initialization (#1466)
Fixes #1457
2016-09-04 22:45:46 +02:00
dnc40085 3328c66f2c Add function `wifi.nullmodesleep()` (#1475)
Enable auto sleep in NULL_MODE by default.
2016-08-27 11:46:24 +02:00
Marcel Stör 5e01b51123 Make DNS engine RFC 5452 compliant (#1324)
The original code did not deal with UDP binding failures, this new code
does one random port attempt and then sets port to 0 to get 'OS
default' behaviour, and ASSERTs that that has to work.

Patch also moves the local UDP port range definition to udp.h from
udp.c.
2016-08-20 22:19:31 +02:00
Marcel Stör ced7ddc926 Fix math.floor for negative integers (#1454)
Fixes #1453
2016-08-19 16:35:35 +10:00
Luís Fonseca 16051d51d6 Implement initial version for websocket module (#1433) 2016-08-18 13:59:44 +02:00
Yury Popov 3c55e8c026 MQTT memory / connection issues fix (#1445) 2016-08-14 10:32:11 +02:00
Luís Fonseca 67750c4a72 Make HTTP module follow redirects (#1450)
Fixes #1366
2016-08-14 00:48:13 +02:00
Marcel Stör 567b0a5553 Allow to override User-Agent and Host HTTP headers (#1426)
* Allow to override User-Agent and Host HTTP headers

Fixes #1410

Idea borrowed from (unmerged) #1157

* Do not send port for host header for default ports
2016-08-11 13:22:31 +10:00
Marcel Stör 07aa210c50 Remove DEVKIT_VERSION_0_9 and deprecated functions (#1439) 2016-08-04 23:03:37 +02:00
Yury Popov f1afe7b6ab Add support for dynamic timers, deprecating the static ones (#1424) 2016-08-02 22:35:53 +02:00
Yury Popov a499716cc1 Update modules to be Lua coroutine compatible (#1423) 2016-08-02 22:33:05 +02:00
Arnim Läuger ff46abe61f Fix DHCP server heap corruption per recommendation by Espressif (#1421)
To avoid crash in DHCP big packages modify option length from 312 to MTU - IPHEAD(20) - UDPHEAD(8) - DHCPHEAD(236).
2016-08-02 22:30:11 +02:00
Arnim Läuger 7f8a2b2c19 Update u8glib to v1.19.1 and add setContrast() (#1385) 2016-08-02 22:29:34 +02:00
Marcel Stör aa5fd1445d Change 'formatting file system' message (#1413) 2016-07-24 14:39:42 +02:00
Arnim Läuger 84c005e85c Update to SDK 1.5.4.1 (#1390) 2016-07-22 23:18:47 +02:00
Thomas Soëte 8866297c6d Remove buffer:write() as ws2812.write() handles buffers (#1408) 2016-07-20 23:04:33 +02:00
Thomas Soëte 854ad7c80f Handle two WS2812 strips in parallel using the two UARTs through GPIO2 and TXD0 (#1310) 2016-07-20 22:28:47 +02:00
Arnim Läuger 56839fb20b Add rtctime.epoch2cal() (#1386) 2016-07-19 22:01:26 +02:00
bert hubert 05baef325d Increase DNS transaction ID space from 250 to 65536 states (#1323) 2016-07-19 21:24:54 +02:00
Arnim Läuger b21b3e08aa Free HTTP headers and post data memory in disconnect and DNS failure callback (#1403) 2016-07-17 22:27:26 +02:00
Marcel Stör cc2fee5ec0 Seed CoAP message id, fixes #847 (#1401) 2016-07-17 15:17:57 +02:00
Yury Popov 549f42107e Update to SDK 1.5.4 (#1377) 2016-07-10 15:18:46 +02:00
Jonathan Karras 04b86b80f6 Fix open drain level issues when _not_ using parasitic power mode. (#1291)
Port of @pstolarz work on PaulStoffregen/OneWire#8
2016-06-28 22:51:55 +02:00
FrankX e14dd7aba0 Adjust EUS to new SPIFFS (#1376) 2016-06-28 22:50:23 +02:00
Philip Gladstone 4a8abc2060 Add support for driving instrument gauge stepper motors (#1355) 2016-06-26 14:19:06 +02:00
moononournation 4aad34158b add 64m and 128m flash support (#1367)
* update esptool.py to v1.2-dev

* add 64 Mbit and 128 Mbit support
2016-06-26 14:16:39 +02:00
vsky f2d0195732 gpio.serout going asynchronous (#1359)
* gpio.serout going asynchronous

* fixing several issues following PR comments
2016-06-16 20:33:26 +02:00
Arnim Läuger d445ae97fb Enable spi clock_div < 4. (#1283) 2016-06-15 21:01:52 +02:00
Jonathan Karras 7ff8326cc9 Skip passing port in Host header if standard port. (#1362)
Some virtual hosts break if the port is added in the headers.
2016-06-15 12:45:39 +02:00
Konrad Hübner 500bbceded added fadeIn, faceOut and shift to ws2812 module (#1343)
* added fadeIn, faceOut and shift to ws2812 module

* improvements to rotate, unified fade method

shift renamed to rotate and usage of more efficient memory operations.
fadeIn and fadeOut unified into fade method with optional parameter for direction.

* rename method to "shift" with optional mode parameter
2016-06-10 22:23:37 +02:00
Arnim Läuger d416648990 Add pcm module. (#1255)
* Add pcm module.
* Add network streaming example.
* document hw_timer dependency with pwm
* Add vu peak callback.
2016-06-05 23:21:36 +02:00
Philip Gladstone af39a0bc25 Upgrade to latest SPIFFS and add building of file systems (#1226)
Fixes #1164 and thus also #1150, #1149, #1147 and #898.

* Move to latest version of SPIFFS
* Add SPIFFS porting layer for NodeMCU
* Add option to delete output if it doesn't fit
* Change FLASHSIZE to be in bits by default: default 4mb 32mb
* Add SPIFFS_MAX_FILESYSTEM_SIZE override
* Add notes on SPIFFS_FIXED_LOCATION
* Add 1M boundary
* Include the current version of the LICENSE
2016-06-05 23:10:58 +02:00
Jason Schmidlapp e3f7e6321f Added support for STM L3G4200D digital gyroscope (#1251) 2016-06-05 23:00:37 +02:00
Jason Schmidlapp be10ccdb6b Added support for Analog Devices ADXL345 accelerometer (#1252) 2016-06-05 22:59:55 +02:00
Jason Schmidlapp bb9e210441 Added support for Honeywell HMC5883L digital compass (#1253) 2016-06-05 22:59:39 +02:00
dnc40085 4a1775c2e8 Fixed bug where default hostname is not set on boot when in SoftAP mode (#1341) 2016-06-05 13:38:12 +02:00
FrankX f4582e2499 EUS: add assigned IP address (#1313)
This change shows the assigned IP address when connected using EUS
2016-06-04 00:21:18 +02:00
Arnim Läuger ae873b70c6 Add caching for multi-byte transfers (#1247)
* add caching for multi-byte transfers
handle HSPI /CS in examples

* push similar code snippets into macro
2016-06-04 00:18:19 +02:00
Sebastian ecf74e5004 Added support for tm1829 baed led controllers (#1330) 2016-06-03 23:47:36 +02:00
dnc40085 2fdaa9b171 Moved call to set default wifi hostname (#1317)
Moved call from `luaopen_wifi (wifi.c)` to `user_rf_pre_init
(user_main.c)`
Note: This change adds ~440 us to boot time
2016-05-27 13:25:42 +02:00
Arnim Läuger 37411da06d Remove app/json. (#1312) 2016-05-27 11:53:21 +02:00
Philip Gladstone 2dacec156a Ensure that load_store exceptions trigger the exception handler (#1307)
Chain unhandled load_store exceptions to SDK exception handler
2016-05-27 12:14:02 +10:00
Arnim Läuger 2bb6e407a3 Initialize cb for unsubscribe and unref it upon socket deletion. (#1305)
Thank you.
2016-05-21 08:25:16 -04:00
Johny Mattsson 30d354c290 Rework ADC mode setting approach (#1285)
- Stop fighting against the SDK in terms of owning/writing the init_data block.
  NodeMCU included a default init_data block because originally the SDK did
  not, but by now it's not needed.

- Expose a way to reconfigure the ADC mode from Lua land. With most people
  using the cloud builder and not able to change the #define for byte 107
  this has been a pain point.

- Less confusion about which init_data has been used. Lua code can now simply
  state what mode it wants the ADC to be in, and not worry about the rest of
  the init_data complexities such as the init_data changing location due to
  flashing with wrong flash_size setting, or doing/not doing a chip-erase
  before loading new NodeMCU firmware.
2016-05-18 21:45:15 +02:00
dnc40085 1744372060 Updated tmr module and documentation
* Change upper limit for timer in `tmr_register` and `tmr_interval` to reflect new limit in SDK 1.5.3.
* Change documentation for `tmr.alarm()`, `tmr.interval()` and `tmr.register()` to match source.
* Improve error reporting to be more descriptive.
2016-05-14 00:17:04 +02:00
Philip Gladstone f0c1034308 Send a multicast response for QM query and other mDNS fixes
* Send a multicast response if it is a QM query
* Use the NSEC record in the style which mDNS demands
* Shuffle the code a bit and allow sending of A response...
* Made the A record work
* Now gets TTLs right and (I think) handles multiple questions
2016-05-12 14:37:46 +02:00
philip 501ef9d566 Fix bugs with mqtt connection error handling 2016-05-09 22:04:23 -04:00
Thomas Soëte 0577c8af0f Finalize work on ws2812 module
* Fix bug on first write
	Pin is 'HIGH' at reset, so we need to pull it down and generate a
	reset.

* Move init code to flash section, not needed to be in iram.

* Remove pin choice in API

* Remove lock in ws2812_buffer_write

* Remove naked malloc

* Drop ws2812_writergb

* Drop support of ws2812.buffers to ws2812_writegrb should use ws2812.buffers:write

* Add support for <>3 colors per leds strips (RGBW)

* Remove ICACHE_FLASH_ATTR

* Add static const on _uartData to avoid initialization penalty
2016-05-09 07:21:50 +02:00
Johny Mattsson 9a7a2c4dc3 Merge pull request #1184 from devsaurus/user-gnu11
Enable -std=gnu11 for user dir
2016-04-30 13:26:09 +10:00
devsaurus 8e11e895f5 move SPIRead to rom.h 2016-04-29 19:57:31 +02:00
Philip Gladstone 0472587c4c Added length checking (#1260)
Made the code clearer
2016-04-24 16:45:47 +02:00
Philip Gladstone 5b4b1e0388 Autobaudrate detection by default -- to reduce problems with speed change (#1215)
* Auto autobaud detection by default

* Added stopping the autobaud if explicitly configured

* Add note about auto-baud to the uart.md
2016-04-17 23:44:18 +02:00
Johny Mattsson f428897810 SNTP module enhancements (#1243)
* Provide an error code to SNTP error callback.

* Switch SNTP to use ephemeral port.

In case we're being hit by ISP-level thou-shall-not-run-NTP silliness.
2016-04-15 12:49:18 +02:00
Philip Gladstone 61c2b4dfe3 Minimal changes to handle bad bodies (#1212)
Fix failure to compile

Move the check into the http module

Reverted change
2016-04-09 13:54:10 +02:00
Philip Gladstone 3a5e5f10e2 Take 2: Add regular sends to mdns. Check for (some) buffer overflows. Make it handle unicast
Merging as suggested by @TerryE (and squashing at the same time. Turns out that this feature is enabled for this repo).

* Squashed commit of the following:

commit f985f10d9d2ee035f5a6ee6245c60d9904d98cc1
Author: philip <philip@gladstonefamily.net>
Date:   Sun Mar 27 21:52:46 2016 -0400

    Better mdns code

commit 6ee49ee106
Author: philip <philip@gladstonefamily.net>
Date:   Fri Mar 25 23:25:11 2016 -0400

    Update the docs

commit 7e455541c6
Author: philip <philip@gladstonefamily.net>
Date:   Thu Mar 24 21:58:16 2016 -0400

    Add retries and buffer checking to mdns

    Get the length right

    Now it seems to work

* Might work for combined mode

* Fix crash

* Simplified various bits of code. Changed the LUA interface

Added checking (to some degree) incoming quyery types

Move the defaults to the right place

Added reference to the RFC`
2016-04-03 14:10:52 -04:00
Jason Follas e16204d4f4 Corrected SPI CPOL/CPHA relationships
* Corrected CPOL/CPHA relationships

* Simplified to remove duplicated code

* Removed comments about when MISO is sampled. ESP seems to sample MISO on same clock edge as when MOSI is set.
2016-04-02 19:26:07 +02:00