renatobo / bonogps Goto Github PK

According to this post, RaceChrono only accepts GPRMC and GPGGA so they can be disabled

Alternatively, adopt the same binary packet format described in
racechrono-ble-diy-device
other info at https://github.com/timurrrr/arduino-RaceChrono

Additional info also at the Tutorial on DIY devices which explains $RC2 and $RC3 formats

Hints in the forum

If you're building your own GPS, you can follow this protocol description https://github.com/aollin/racechrono-ble-diy-device . There's also working Arduino code which you can modify to your needs. This device is added from "RaceChrono > Settings > + Add other device > RaceChrono DIY > BLE > GPS".

As per an email from the author Roberto Morini, these messages are supported

• GPGGA, GPRMC, GPVTG, GPGLL -> to be activated
• GPGSA -> not for now

This requires adding a new configuration page for Racetime and new settings

Download from Google Play Store as RaceTime - GPS Lap Timer

Standard configurations/messages seem inadequate, more info have been asked to the developer via email.

As documented in the forum, GLL is optional: validate the results and enable it (as an option, or always with TrackAddict)

Right now TrackAddict has an 'On/Off' toggle

while it should be consistent with the others

Simple option: log data to flash (this might require removing the option for OTA)
Additional HW needed for the option to log to SD (probably the better option)

Examples at

• https://randomnerdtutorials.com/esp32-data-logging-temperature-to-microsd-card/
• https://github.com/wilhelmzeuschner/esp32_gps_bicycle_computer
• https://github.com/har-in-air/ESP32_IMU_BARO_GPS_LOGGER
• https://github.com/hamsternz/esp32_serial_log_to_sd

When BT-SPP and WebServer both have a client, either one stops working.
In most cases, webserver can't serve the root / page (perhaps as it's the largest one), other pages are fine.

Branch esp32_https_server helps with the generation of the root / page, at the cost of significant more firmware size (+150kb), but there are several potential benefits from it

• partial HTML pages, thus reducing size of Strings and potentially using char[]
• reduction of handles page: on/off can be combined, as well as multiple GPS or BAUD rates
• potentially moving the web server to an async task, not running in the main loop

As suggested in the HLT forum message 2 a binary protocol would be best for efficient transmission

Options are

• an existing binary protocol, e.g. Autosport Lab's channel interface design as suggested in message 1
• new one?

Some info in the (HLT developer guide](http://www.gps-laptimer.com/LapTimerDocumentation%20-%20Engine%20Data%20and%20Developer%20Program.pdf)

The TCP-IP server at 1818 relay UART communications is not needed at all times, so it should be made optional

• add a preference status
• add an option in the Connection panel

This could lead to disabling wifi altogether, saving much in battery usage

Add support for the LOLIN D32 PRO board

Fixes already identified

• LED_BUILTIN needs to be GPIO_NUM_5
• Serial2 needs to be defined with actual PINS

I am using Racechrono with the presets for it (BL SPP)

The first connection is great and I see the data in Racechrono. After I finish my recording in Racechrono and click again on Start, Racechrono has a problem to establish the connection.

A restart of the module fixes the problem.

Hi,

i am using an esp32 with NEO 8M and without a battery.

The ESP is powered via ignition power of my bike so I don't need deepsleep, battery information etc.

Do I need the Taskscheduler for Racechrono or another racing app? If not I would disable this functionality.

Great dev .. thanks Renato.
I did the build with a 880 BN GPS, I just cannot get the compass work properly.
Do you think there is a way to have it working ? can I wire the SCL and SDA to the ESP32 ad try to read the values and alter the code to send/feed Harry Latimer with it ?
Apart from that it's great thanks !

There are at least a couple of good ublox libraries

• https://os.mbed.com/teams/ublox/code/gnss/
• https://github.com/ldab/u-blox_GNSS

Evaluate removing the custom code and use these ones instead

In page http://bonogps.local/preset, link to instructions for each platform or simply link to the main page connecting

Each version should point to the respective branch (not main)

Device name is not recognized correctly until a connection with another BLE client is performed (e.g. LightBlue)
E.g. device shows up as either Nimble or a shorter version of its name

Examples at

• https://github.com/platformio/bintray-secure-ota
• https://lastminuteengineers.com/esp32-ota-web-updater-arduino-ide/
• https://github.com/chrisjoyce911/esp32FOTA
• https://github.com/ayushsharma82/AsyncElegantOTA

This sketch does not use these BLE functions

• Client
• Scan

nimconfig.h part of NimBLE-Arduino can be changed to define these props to reduce SW size by 7+26kb

// #define CONFIG_BT_NIMBLE_ROLE_CENTRAL
// #define CONFIG_BT_NIMBLE_ROLE_OBSERVER