Ruuvi Gateway ESP32 firmware

Developed with:

ESP-IDF version v4.0.1
ESP32-DevKitC V4
Waveshare LAN8720 ETH board
nRF52832 devkit

or Ruuvi Gateway A1 boards, contact lauri@ruuvi.com for details on how to get one.

Features

Latest documentation and roadmap is at https://docs.ruuvi.com/gw-esp32-firmware .

IO pins for devkit:

ESP32	Function
GPIO35	Reset button
4	UART TX
5	UART RX

nRF52832 devkit

ESP32	nRF52832 devkit	Function
GPIO5	P0.11	UART: ESP -> NRF
GPIO36	P0.31	UART: NRF -> ESP
GPIO15	Debug In: 4	SWD CLK
GPIO16	Debug In: 2	SWD I/O
GPIO17	Debug In: 10	SWD NRST
3V3	Debug In: 1	VCC +3.3V
GND	Debug In: 3	GND

Ethernet:

ESP32	LAN87210
0	nINT/REFCLK
23	NC/CLOCK_ENABLE*
15	MDC
18	MDIO
19	TX0
21	TX_EN
22	TX1
25	RX0
26	RX1
27	CRS/RX_DV

** ESP32 will use external clock signal from LAN8720 and some modifications are needed for that: **

WaveShare LAN8720 modification for clock
Remove capacitor C15 from onboard Boot button (SW1) to make clock signal work from LAN8720

nRF52 firmware

nRF52 firmware can run on PCA10040/nRF52832 or on nRF52811 on Ruuvi Gateway. You can find the latest firmware at https://github.com/ruuvi/ruuvi.gateway_nrf.c.

Build and Flash

Run git submodule update --init --recursive to get updated components. Project configuration is stored in sdkconfig-file, you don't need to reconfigure it. Build the project and flash it to the board, then run monitor tool to view serial output:

idf.py build
idf.py -p PORT flash monitor

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects. Please note that you need to install specific ESP-IDF version, current version is at the top of the README. For example git clone -b v4.0.1 --recursive git@github.com:espressif/esp-idf.git

Using prebuilt images

Prebuilt images for development versions of firmware can be found at Ruuvi Jenkins. However these are artifacts of internal development, if you want to just use the gateway you should use release starting from 1.x+. First release is estimated to be ready on 7/2020.

You can flash them with esptool.py

pip install esptool
esptool.py -p (PORT) -b 460800 --before default_reset --after hard_reset write_flash --flash_mode dio --flash_size detect --flash_freq 40m 0x1000 bootloader.bin 0x8000 partition-table.bin 0x10000 ruuvi_gateway_esp.bin 0x300000 fatfs_gwui.bin 0x360000 fatfs_nrf52.bin

or using the Windows GUI tool Flash Download Tools (download) with these settings:

marceluphd/ruuvi.gateway_esp.c