Lanbon L9 #765
Replies: 14 comments 61 replies
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This is a new device. We verified there is a ESP32-S3-Wroom-1U inside:
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I ordered one today and I’ll be happy to take it apart and see what we can do with it. Will need some guidance on how best to help the community. |
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Thanks so much for posting the images and helping to identify the pins. More investigation is needed to identify the display and touch pins... |
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I'm trying to gauge interest in this device. Please indicate if you would consider the L9-HS : |
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don't think it would have power monitoring, but it does have "Advanced Radar Motion Sensor Switch" which i think is some sort of presence sensor. its not pir with the little plastic bulb shield popping out |
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The form factor looks a bit like the Hi-Link LD2410 modules, but would need to verify the markings on the presence sensor chip. |
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Now that I have one in hand. I will say for the convince of fitting in a standard US decora spot not sure how small the screen is worth it. I probably won't buy many more of these unless I really like the mmwave. We will see once it's all setup though. |
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The manufacturer confirmed that there is a dimmer version in the works but it's not available for order yet. |
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I love that fact that it fits a standard US light switch box and switch plate. This is the only screen I have seen in this form factor so far. I have not seen mmwave available on any of these small screens so this is also a big plus. I think this screen is a winner. I would buy a few for sure. |
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Display Module;:
Display PCB backside: Power Module:
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I am buying at least one, especially while there is a $10 off coupon. I am guessing that it is mmwave presence detection by looking at it. |
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Great, please share if you could help figuring out the mapping of the (display) pins to the ESP32-S3. |
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Will do. It is supposed to arrive today. |
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The display seems to be a HD19006C30 which indicates an ST7789V display controller instead of the ST7701S. This should make things a bit easier since there are examples out there for this display. I believe the pin mapping to be; Now we need to find out where each pin goes to the ESP32. |
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I think the next step would be to backup the factory firmware and try a test sketch to verify the pins. |
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Yeah so I am having a problem getting them to go into serial bootloader mode. Pulling gpio 0 to ground just doesn't seem like it wants to go. Anyone had luck? |
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@stboch how are you applying the voltage? I feel like I needed to put a pin right on the esp chip instead of the headers when I was messing with it before |
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I have done both. I got it in my bdf and applied it directly with 3.3v I got it booting and got all the main uart logs of the firmware boot. When I tried to pull gpio0 to ground no good. Even tried pulling gpio46 low and also no good. |
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I have dumped the flash and can read write the ESP32 chip. It seems like you need to supply both 3.3V and 5V to the board, via the J4 header, which I'm doing with a bench supply right now. For GPIO0, I'm using pin 12 on the J4 header, and it works fine. |
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Boot log for the factory firmware. |
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See if we think this is correct. Slight variations from @lylavoie google sheet
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I bought a breakout and ribbon, and a couple of these displays (https://www.amazon.com/dp/B0CTTW3YMB?ref=ppx_yo2ov_dt_b_fed_asin_title) which plugin and work on the L9. I've double checked the wiring described in the google sheet and that all matches and aligns with the pinout on the displays from Amazon. I was also able to trace the backlight, through transistor labeled MT1 and to GPIO42 as well. However, I have not yet had any luck getting TFT_ESPI to drive the display through a parallel interface. |
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Thanks, I ordered a display to experiment. Maybe try the LovyanGFX library instead of TFT_eSPI. |
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Any update on this driver? I purchased one of these today and it's a really nice little screen! I don't think I have seen any other screen that fits in a standard decora plate. |
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I am interested in this as well! This would be an awesome option as a display! Unfortunately there aren’t many options for making displays work that are any more than single gang and this could help solve that. It would be especially useful where there is a separate light switch and fan switch. |
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I pushed a commit b55efe0 which adds a configuration for the Lanbon L9. I don't own this device and it is purely created for testing and verification of the information we gathered so far... Please backup your original firmware before compiling and uploading the firmware. If you find issues with pins or settings please post here or create a Pull Request. Hopefully we can create a working config together... |
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Hey @fvanroie, I just purchased an L9-HS and I'm encountering an issue loading up OpenHASP based on your most recent commit above. After flashing, I get an infinite boot loop on regular power-up, backlight comes on but no picture. Happy to help troubleshoot things to get this working for the community as a whole, I've put the serial log output that occurs after flashing below. I did esptool erase_flash prior to flashing the L9 bin that I compiled and have written the bin probably 3-4 times (erasing between each flash). Each time the error is the same. 'CONF: Failed to load /config.json' followed later by 'Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled.' on every loop. Any ideas what could be causing this? happy to provide more details if needed. [01:39:52]�ESP-ROM:esp32s3-20210``` |
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FWIW, I received similar results. |
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This configuration is a test configuration, based on the information gathered here. It is to be expected that it doesn't work from the first try. Since I don't own the device, I can't really assist or troubleshoot anything. Someone with access to the device really needs to put in the effort to verify, test and correct the driver/pin settings... It started out with a lively search for the pins, but now the real grunt work needs to done to fine-tune the information into a working config. |
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I'm more than happy to contribute since I have this device. Mainly, I just have no idea how to interpret the errors I mentioned above. Any pointers on where to begin with this thing? |
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That error doesn't tell me anything besides a crash while or after initializing the display driver. This can be a config issue, wrong pin, driver issue, ... etc. The best way to move forward is to test a demo sketch from ArguinoGFX, LovyanGFX or TFT_eSPI to validate the pins and driver settings. Once you have a minimal working sketch, it will be easier to integrate that into openHASP. Now we're still punching in the dark and the chance of getting it working will be low. |
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My apologies, I realized after posting that it was entirely unhelpful. My intent was only to point out that I was unable to get it to work, but unfortunately I didn't save my terminal logs. I was able to flash my device with Tasmota-lvgl and get the device to boot, but wasn't able to get much further as it was just a bit over my head. I'm happy to reflash my device with this version and post logs if that would be helpful. I can try to turn up logs as well if that would be helpful. I spent a couple of hours reading through things and look over documentation, but it was still quite a bit over my head. I'm sorry if it sounded like I was just pitching something over the fence. I'm going to continue to tinker with mine, but I'm really just brute-forcing it by changing values and seeing what sticks. If there is anything I can provide to anyone more qualified than myself, just LMK. |
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Good news everyone, I can confirm I have the screen of the L9 working, using the Arduino GFX library, so we know the pinouts are working. Below are the important initialization lines, you can use to setup for the hello world program (example below). Remember, to work on bench, via the J4 header, we need to supply both 3.3 and 5V. For a video of this running, see: https://photos.app.goo.gl/Gu993TwHhs34Zios8 #include <Arduino.h>
#include <Arduino_GFX_Library.h>
/* More data bus class: https://github.com/moononournation/Arduino_GFX/wiki/Data-Bus-Class */
Arduino_DataBus *bus = new Arduino_ESP32LCD8(17 /* DC */, 21 /* CS */, 13 /* WR */, 18 /* RD */,
6 /* D0 */, 7 /* D1 */, 15 /* D2 */, 16 /* D3 */, 10 /* D4 */, 9 /* D5 */, 46 /* D6 */, 3 /* D7 */);
/* More display class: https://github.com/moononournation/Arduino_GFX/wiki/Display-Class */
Arduino_GFX *gfx = new Arduino_ST7789(bus, 4 /* RST */, 0 /* rotation */, true /* IPS */,
170 /* width */, 320 /* height */, 35 /* col offset 1 */, 0 /* row offset 1 */ );
void setup(void)
{
Serial.begin(9600);
Serial.println("Arduino_GFX Hello World example");
// Enable Blacklight
pinMode(42, OUTPUT);
digitalWrite(42, HIGH);
// Init Display
if (!gfx->begin(16000000UL))
{
Serial.println("gfx->begin() failed!");
}
gfx->fillScreen(BLACK);
gfx->setCursor(10, 10);
gfx->setTextColor(RED);
gfx->println("Hello World!");
delay(5000); // 5 seconds
gfx->fillScreen(BLACK);
gfx->drawRect(10, 10, gfx->width()-20, gfx->height()-20, RED);
delay(5000);
Serial.println("Done with setup ...");
}
void loop()
{
gfx->fillScreen(BLACK);
gfx->setCursor(random(gfx->width()), random(gfx->height()));
gfx->setTextColor(random(0xffff), random(0xffff));
gfx->setTextSize(random(6) /* x scale */, random(6) /* y scale */, random(2) /* pixel_margin */);
gfx->println("Hello World!");
delay(1000); // 1 second
Serial.println("Looping...");
} |
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This branch has the changes for openHASP get the display working, https://github.com/lylavoie/openHASP/tree/Lanbon_L9 Still has some bug, where, once the touch driver starts up, it seem like the system freezes, even after it looks like it finished booting all the way. |
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That branch should be working now, touch screen is responding. |
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Wow, that's awesome work! Thanks so much for the PR, it is now merged and building. |
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Working on the RF presence sensor. Ended up pulling off the board and it looks like it's actually this: MoreSense 10G Hand Sweeping Series MS10-3007D26M4 (https://en.moresense-tech.com/product_details/75.html) Anyone worked with these yet. Trying to find a datasheet. |
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The ZIP file looks like it has what I need in the C-code examples, assuming it works for this module. I didn't yet have success getting the module seen by an I2C scan, but I will play with this some more and see if I can mock something up that works. On the relay and the FAN module, it should just be a matter of driving the GPIO pins on the J4 connector. The FAN module might have more of those connected, the Light Switch only has the single relay. There is also the power sensor, which I think is based on the HLW8012, but I have also not yet played with this either in the L9, but I've used them before in ESPhome stuff. @fvanroie as we get closer to a final working solution for all of the L9, how do we define the GPIO and things like the HLW8012 power sensor "from code" so there are there when the firmware is built? I admit, I have not gone looking for that level of depth yet in the code base, but I think it's possible, from loading one of the example builds for other hardware. |
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So, the radar definitely works, in that is drives the output pin high when it detects something and will reset it once the detection event ends. However, I have not been able to get the I2C interface work, using either the actual I2C libraries, or the bit-banging approach they provided in the code example. |
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How are the default detection settings on it? Would it generally be usable as-is just with the high/low reading? |
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It would likely work, but I don't know if that is because I booted up the Lanbon software at least once and it "programmed" that chip, and those settings are saved, or these are the default settings, etc. The output pin of the radar is GPIO11, and can just be an input to OpenHASP. The bare radar module (i.e. no plastic case) was sensing about 2m away. Without the working interface, we can't chance the sensitivity. For where I wanted to install the L9, I was hoping for more of a 0.5m sensing, so the screen doesn't turn on every time someone walks by, compared to approaching the switch. Maybe I'll purchase a second unit, so I can install it and still have one to develop against, that might be a winter break project. |
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Ok thanks for all that info, I'll be off of work starting next week so I'll spend some time testing with my devices as well. Did you ever figure out how to add pre-configured output pins for the device specific firmware? I played around with trying to manually assign the pins in the web UI but I think the pin for the relay is disabled/hidden right now. I haven't taken a multimeter to the device to confirm which pin it is yet (was going off of the diagram in this discussion). This weekend I'll do that and post relevant pinouts for both the regular L9 and the CF version |
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I'm able to get it to trip reliably at about 4 feet. Also, in case it helps, it has never booted to the factory firmware. |
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Thanks, That's good to know! Unfortunately I don't have much experience with IC2 to be able to talk to the sensor and modify that range. Would be very cool to have that piece working since 4ft would be way to far for my use case haha |
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Does anyone have experience or insight into the Lanbon L9 switch https://a.co/d/cO7q0Fp
Things like chipset, display and touch and display resolution? And potentially whether openHASP could work on that switch?
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