euc Posted August 25, 2016 Author Share Posted August 25, 2016 I recently ordered one of these 10 dollar smartwatches. Maybe something interesting can be done with it. But I think it can probably only act as a slave device. Quote Link to comment Share on other sites More sharing options...
electric_vehicle_lover Posted August 25, 2016 Share Posted August 25, 2016 14 minutes ago, euc said: I recently ordered one of these 10 dollar smartwatches. Maybe something interesting can be done with it. But I think it can probably only act as a slave device. I guess the problem with that cheap watches is that they will leave production and there is no community - compare with pebble community, go to Android store and search "pebble". Se here technical details written from hackers community: http://www.pebbledev.org/ Official pebble developers: https://developer.pebble.com/ Pebble have success in market and they also provide cheap versions of $100 that we can buy even more cheap on ebay, used. Seems a good investment to me. Quote Link to comment Share on other sites More sharing options...
euc Posted August 25, 2016 Author Share Posted August 25, 2016 $100 for a watch is just too much imo. I don't need anything fancy. I just need it for the unicycle. Quote Link to comment Share on other sites More sharing options...
electric_vehicle_lover Posted August 25, 2016 Share Posted August 25, 2016 And you are going on a good path!!! You are developing an addon for EUC and we have luck to have boards that outputs data over serial / bluetooth. Maybe in future with our firmware we can keep the same interface and expand it for other features!! Quote Link to comment Share on other sites More sharing options...
euc Posted August 30, 2016 Author Share Posted August 30, 2016 What do you think guys? Could that actually be a touch screen? I'm having a surprisingly hard time finding a simple 1.4-2 inch touch screen for around $5. I mean you can buy a whole smartwatch for $12, but I just need the screen. 2 Quote Link to comment Share on other sites More sharing options...
esaj Posted August 30, 2016 Share Posted August 30, 2016 2 hours ago, euc said: What do you think guys? Could that actually be a touch screen? I'm having a surprisingly hard time finding a simple 1.4-2 inch touch screen for around $5. I mean you can buy a whole smartwatch for $12, but I just need the screen. None of the other sellers I checked mentioned it having touch support, so don't know... I have one of these: https://www.aliexpress.com/item/LCD-module-TFT-2-4-inch-TFT-LCD-screen-for-Arduino-UNO-R3-Board-and-support/32552043575.html It's a 2.4-inch TFT with touch, I had some trouble getting it to work at first (but did eventually). It's a "shield"-type, ie. it's meant to be inserted directly on top of Uno, but maybe you could just wire it from further away and maybe use some logic chips for multiplexing to save pins on the Arduino. 1 Quote Link to comment Share on other sites More sharing options...
euc Posted August 31, 2016 Author Share Posted August 31, 2016 8 hours ago, esaj said: None of the other sellers I checked mentioned it having touch support, so don't know... Yes, that's why I was so confused. I also couldn't really find a datasheet for it. I found this though: http://www.elecfreaks.com/wiki/index.php?title=1.8"_TFT_LCD:_TFT01-1.8#Pin_definition_and_Rating ant it mentions a "touch bus". 8 hours ago, esaj said: I have one of these: https://www.aliexpress.com/item/LCD-module-TFT-2-4-inch-TFT-LCD-screen-for-Arduino-UNO-R3-Board-and-support/32552043575.html It's a 2.4-inch TFT with touch, I had some trouble getting it to work at first (but did eventually). It's a "shield"-type, ie. it's meant to be inserted directly on top of Uno, but maybe you could just wire it from further away and maybe use some logic chips for multiplexing to save pins on the Arduino. The ESP-32 will have 33 GPIO pins, so that shouldn't really be a problem. But I think that 2.4 inches will be too much for a smartwatch. I mean I really like the idea of a smartwatch that has a bigger screen than a normal smartwatch, 2.4" seems too much though, but it's hard to say without actually having one in front of me. Is your screen a touch screen? 1 Quote Link to comment Share on other sites More sharing options...
esaj Posted August 31, 2016 Share Posted August 31, 2016 44 minutes ago, euc said: The ESP-32 will have 33 GPIO pins, so that shouldn't really be a problem. But I think that 2.4 inches will be too much for a smartwatch. I mean I really like the idea of a smartwatch that has a bigger screen than a normal smartwatch, 2.4" seems too much though, but it's hard to say without actually having one in front of me. Is your screen a touch screen? Definitely too big for smart-watch, maybe smart-wristband or PIPBoy It should be a touchscreen, I tested it sometime last December or so, so don't really remember what examples I went through, all I remember is that I needed to try a bunch of TFT-libraries before getting it to work (even similar looking 2.4" TFTs sold in Aliexpress can actually use different chips for controlling the TFT). 1 Quote Link to comment Share on other sites More sharing options...
euc Posted August 31, 2016 Author Share Posted August 31, 2016 (edited) I think I might actually prefer such a big screen. I don't know. I will order a few of those today. Maybe you can answer a couple of questions for me. How well can you read the screen on full brightness outside and is it possible to read it when the sun is shining? How much power does it draw at a reasonable brightness? edit: Thinking about it, a resistive touch screen might not be a very good choice. I think capacitive touch would be nicer for swiping gestures etc. And the ESP-32 actually even has a capacitive touch sensor built in. Edited August 31, 2016 by euc 1 Quote Link to comment Share on other sites More sharing options...
euc Posted August 31, 2016 Author Share Posted August 31, 2016 Oh, almost forgot. I have attached watch straps to the prototype now 1 Quote Link to comment Share on other sites More sharing options...
esaj Posted August 31, 2016 Share Posted August 31, 2016 (edited) 42 minutes ago, euc said: I think I might actually prefer such a big screen. I don't know. I will order a few of those today. Maybe you can answer a couple of questions for me. How well can you read the screen on full brightness outside and is it possible to read it when the sun is shining? How much power does it draw at a reasonable brightness? I'll need to dig up the board and figure out again how to make it work Of course I didn't write down which libraries I used or if they needed any tweaking... If I get it working, I'll then hook it up on a breadboard to get the meters in-between for measuring. But, as usual, I've also got other stuff going on, so it might take a while. Quote edit: Thinking about it, a resistive touch screen might not be a very good choice. I think capacitive touch would be nicer for swiping gestures etc. And the ESP-32 actually even has a capacitive touch sensor built in. Yeah, I think it's mentioned in some sellers entries that it's resistive, not capacitive... Oh, almost forgot. I have attached watch straps to the prototype now That's pretty cool, although maybe a bit bulky Edited August 31, 2016 by esaj 1 Quote Link to comment Share on other sites More sharing options...
euc Posted August 31, 2016 Author Share Posted August 31, 2016 4 minutes ago, esaj said: I'll need to dig up the board and figure out again how to make it work Of course I didn't write down which libraries I used or if they needed any tweaking... If I get it working, I'll then hook it up on a breadboard to get the meters in-between for measuring. But, as usual, I've also got other stuff going on, so it might take a while. Wow, you are awesome! 4 minutes ago, esaj said: That's pretty cool, although maybe a bit bulky I know, but once I have the ESP-32 and found a better watch strap, it will be really slim. 1 Quote Link to comment Share on other sites More sharing options...
esaj Posted August 31, 2016 Share Posted August 31, 2016 (edited) I dug up the board, but so far testing some libraries couldn't get it to display anything but plain white. However, a TouchShield-demo works with it, although, it gives out incorrect X and Y-coordinates, and the pressure is reported in "inverse" (pressing harder gives lower values, light tapping gives higher values)... but at least that seems to work (ie. it reacts to touch and sends out at least something) The chip-model the identification programs give out is weird (0x1602, or 0x011602), and so far I haven't managed to find anything that would work... but I still think I did manage to draw something on it back then Anyway, there are those same displays available with different driver chips, for example, this seller does mention that it uses "spfd5408 controller with built in video RAM buffer" http://www.aliexpress.com/item/For-Arduino-UNO-2-4-inch-TFT-touch-screen-supporting-For-UNO-R3/32254339975.html And here's the library for that chip: https://github.com/JoaoLopesF/SPFD5408 (didn't work on mine) All I've got out from mine is this: Read Registers on MCUFRIEND UNO shield controllers either read as single 16-bit e.g. the ID is at readReg(0) or as a sequence of 8-bit values in special locations (first is dummy) reg(0x0000) 00 00 ILI9320, ILI9325, ILI9335, ... reg(0x0004) 00 38 80 00 Manufacturer ID reg(0x0009) 00 00 61 00 00 Status Register reg(0x00BF) 00 00 00 00 00 00 ILI9481 reg(0x00D0) 00 00 HX8357 reg(0x00D3) 00 01 16 02 ILI9341, ILI9488 reg(0x00EF) 00 00 00 00 00 00 ILI9327 The actual chip is between the display and the board, so I can't see what it is Edited August 31, 2016 by esaj 2 Quote Link to comment Share on other sites More sharing options...
euc Posted August 31, 2016 Author Share Posted August 31, 2016 3 hours ago, esaj said: I dug up the board, but so far testing some libraries couldn't get it to display anything but plain white. However, a TouchShield-demo works with it, although, it gives out incorrect X and Y-coordinates, and the pressure is reported in "inverse" (pressing harder gives lower values, light tapping gives higher values)... but at least that seems to work (ie. it reacts to touch and sends out at least something) The chip-model the identification programs give out is weird (0x1602, or 0x011602), and so far I haven't managed to find anything that would work... but I still think I did manage to draw something on it back then Anyway, there are those same displays available with different driver chips, for example, this seller does mention that it uses "spfd5408 controller with built in video RAM buffer" http://www.aliexpress.com/item/For-Arduino-UNO-2-4-inch-TFT-touch-screen-supporting-For-UNO-R3/32254339975.html And here's the library for that chip: https://github.com/JoaoLopesF/SPFD5408 (didn't work on mine) All I've got out from mine is this: Read Registers on MCUFRIEND UNO shield controllers either read as single 16-bit e.g. the ID is at readReg(0) or as a sequence of 8-bit values in special locations (first is dummy) reg(0x0000) 00 00 ILI9320, ILI9325, ILI9335, ... reg(0x0004) 00 38 80 00 Manufacturer ID reg(0x0009) 00 00 61 00 00 Status Register reg(0x00BF) 00 00 00 00 00 00 ILI9481 reg(0x00D0) 00 00 HX8357 reg(0x00D3) 00 01 16 02 ILI9341, ILI9488 reg(0x00EF) 00 00 00 00 00 00 ILI9327 The actual chip is between the display and the board, so I can't see what it is Thank you so much esaj, you're amazing! Quote Link to comment Share on other sites More sharing options...
andress Posted February 22, 2019 Share Posted February 22, 2019 Has anyone got this library, specifically the DirectReceiveDataSimple example going? I tried with my mTen3 but no luck. If I connect to the euc using bluetooth serial I receive data and it seems that the protocol has not changed since this library was written, but when I try direct communication using arduino I have no luck. Maybe I'm connecting it wrong? For this example I connect only GND on the BLE module to GND on arduino and RX of the BLE module (I hope that means TX of the control board) to the RX of the arduino. Is that correct? I'm trying to take control of the LEDs but first need to get the voltage and speed values from the board. Quote Link to comment Share on other sites More sharing options...
Hansolo Posted February 22, 2019 Share Posted February 22, 2019 TX from BLE module to RX of the Arduino Quote Link to comment Share on other sites More sharing options...
andress Posted February 23, 2019 Share Posted February 23, 2019 16 hours ago, Hansolo said: TX from BLE module to RX of the Arduino But why? I don't want to receive information from the BLE module, I want to receive information from the board. So according to my understanding it should work like this: CB | TX | RX | GND BLE | RX | TX | GND - RX to TX since they are communicating ARDUINO | RX | | GND - RX to CB TX to listen to the info but since CB TX is not accessible directly - connected trough BLE RX Can you please explain where is my mistake? Anyway I tried your suggestion and no luck :/ I'll have to look inside the library more closely I guess Quote Link to comment Share on other sites More sharing options...
andress Posted February 23, 2019 Share Posted February 23, 2019 Ok I figured it out My connection is correct. (if someone is trying the same please disregard Hansolo's advice) My assumption that the protocol has not changed was wrong. It is the same as the library assumes apart from the ending. Library assumes all zeroes there and checks for them. Mten3 has some values there. Maybe its info like fan status etc IDK. Anyways DirectReceiveDataSimple works after disabling the check. But DirectReceiveDataAdvanced did not work out of the box but for some reason acceleration printout had to be moved after others. I have no idea why... :/ Same with DirectLedWheel. So I got it working now I need program the LED part to my liking and maybe add a control button Quote Link to comment Share on other sites More sharing options...
Miroslav Bálint Posted December 13, 2019 Share Posted December 13, 2019 please can you send me all these libraries so I can compile the program in arduino IDE? Or send me straight HEX file which I put in arduino nano via ZADIG? I want to do that display with gotway data. Thanks. email: bmiroslavb@gmail.com Well thank you. Quote Link to comment Share on other sites More sharing options...
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