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82 lines
2.3 KiB
Markdown
82 lines
2.3 KiB
Markdown
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# lhp (HTML renderer) embedded demos
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These are demos for various ESP32 + display combinations. A lot of
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the code is common between the demos and is in the toplevel dir
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(where this README lives).
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Notice that although the demos are for ESP32 currently, there is no
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ESP32-specific code in the common part. Only `main/devices.c` in the
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combination-specific directories has the platform-specific init.
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The demo visits some sites using h2 and renders them on the device +
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display combination, with a 10s wait between, in a carousel.
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ESP32 WROVER KIT, and ESP32S2 Kaluga boards and displays are
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supported, along with Waveshare ESP32 dev board and a variety of
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E-ink displays.
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## Setting up wifi
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Edit ./main/devices.c in your platform-specific subdir, enable this section
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and set your wifi SSID and passphrase in the `xxx` strings. This will store
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the information on flash on the device.
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Boot once with that and then remove your information and disable the code
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section again and rebuild.
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```
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#if 0
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/*
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* This is a temp hack to bootstrap the settings to contain the test
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* AP ssid and passphrase for one time, so the settings can be stored
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* while there's no UI atm
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*/
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{
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lws_wifi_creds_t creds;
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memset(&creds, 0, sizeof(creds));
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lws_strncpy(creds.ssid, "xxx", sizeof(creds.ssid));
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lws_strncpy(creds.passphrase, "xxx", sizeof(creds.passphrase));
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lws_dll2_add_tail(&creds.list, &netdevs->owner_creds);
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if (lws_netdev_credentials_settings_set(netdevs)) {
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lwsl_err("%s: failed to write bootstrap creds\n",
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__func__);
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return 1;
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}
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}
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#endif
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```
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Eventually there will be a better way to set this up.
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## Building
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Set up for esp-idf, enter the platform-specific subdir and edit
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`build.sh` to point to the correct USB device path.
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The first time we need to erase the whole flash and blow the whole
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image and partition table
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```
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$ ./build.sh erase-flash
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$ ./build.sh
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```
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Afterwards you can force-build like this which flashes both OTA
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partitions with the new imahe
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```
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$ ./build.sh f
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```
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After you have changed `./build.sh` to your own OTA keys and upload path, and adapted the
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policy to look at your firmware server, you will typically build via uploading to that,
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which resets the board so it can find and install the update and reboot
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```
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$ ./build.sh u
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```
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