WIP: M5 Stack CoreInk - HopeRF RF95W SX1276 LoRa Radio support

21

PR1976 was merged and I was able to get buzzer notifications, thanks to help from @caveman99

Here a summary of what is currently working

  • RED Charing LED close by USB-C connector
  • GREEN status LED top close to the user button
  • User button Top
  • Back Reset button
  • PCF8563 RTC
  • CardKB Keyboard
  • 1.54 inch e-Paper with fast partial updates
  • RFM95W LoRa module
  • onboard Buzzer
  • Wifi
  • Bluetooh
  • Configuration via Mehstastic-Python CLI (serial port)

There is still some free GPIO pins that might be able to be used for GPS

22

I’m looking at a project using dev boards. I think from reading the above this hardware should be supported?

23

Provided you are able to flash/update with Adafruit UF2 bootloader via the SWD pins.

I dont see a bootloader update/flash guide via SWD for this specific board only for the SparkFun Pro nRF52840 Mini Hookup Guide
https://learn.sparkfun.com/tutorials/sparkfun-pro-nrf52840-mini-hookup-guide#using-the-bootloader

1 Like
24

Thanks, I’ve asked here: Adafruit UF2 bootloader via the SWD pins - Possible? · Issue #7 · sparkfun/MicroMod_Processor_Board-nRF52840 · GitHub

25

2023 Updates

Modified PCB to move 90 degree SMA connector closer to RFM95W LoRa Module

image
image850×1083 10.8 KB

Add/Enable M5Stack GPS/BDS

Enabled Serial on GPIO 33/32 Bottom Groove Port

//#define HAS_GPS 1
#define GPS_RX_PIN 33
#define GPS_TX_PIN 32

image
image800×800 35.8 KB

indoor bootlog

ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 188777542, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:1184
load:0x40078000,len:13192
load:0x40080400,len:3028
entry 0x400805e4
E (826) esp_core_dump_flash: No core dum�▒��ѥѥ���found!
E (826) esp_core_dump_flash: No core dump partition found!
[    12][D][esp32-hal-cpu.c:244] setCpuFrequencyMhz(): PLL: 480 / 2 = 240 Mhz, APB: 80000000 Hz
��@INFO  | ??:??:?? 0 

//\ E S H T /\ S T / C

INFO  | ??:??:?? 0 Booted, wake cause 0 (boot count 1), reset_reason=reset
DEBUG | ??:??:?? 0 Filesystem files (16384/1048576 Bytes):
DEBUG | ??:??:?? 0  /prefs/channels.proto (53 Bytes)
DEBUG | ??:??:?? 0  /prefs/config.proto (96 Bytes)
DEBUG | ??:??:?? 0  /prefs/db.proto (203 Bytes)
DEBUG | ??:??:?? 0  /prefs/module.proto (94 Bytes)
DEBUG | ??:??:?? 0  /prefs/ringtone.proto (109 Bytes)
[   227][I][esp32-hal-i2c.c:75] i2cInit(): Initialising I2C Master: sda=21 scl=22 freq=100000
INFO  | ??:??:?? 0 Scanning for i2c devices...
[   241][W][Wire.cpp:301] begin(): Bus already started in Master Mode.
DEBUG | ??:??:?? 0 Scanning for i2c devices on port 1
DEBUG | ??:??:?? 0 I2C device found at address 0x51
INFO  | ??:??:?? 0 PCF8563 RTC found
DEBUG | ??:??:?? 0 I2C device found at address 0x5f
DEBUG | ??:??:?? 0 Wire.available() = 1
INFO  | ??:??:?? 0 m5 cardKB found
INFO  | ??:??:?? 0 2 I2C devices found
DEBUG | ??:??:?? 0 acc_info = 0
INFO  | ??:??:?? 0 Meshtastic hwvendor=42, swver=2.1.18.5c34e36b
DEBUG | ??:??:?? 0 Setting random seed 81102832
DEBUG | ??:??:?? 0 Total heap: 177852
DEBUG | ??:??:?? 0 Free heap: 144032
DEBUG | ??:??:?? 0 Total PSRAM: 0
DEBUG | ??:??:?? 0 Free PSRAM: 0
DEBUG | ??:??:?? 0 NVS: UsedEntries 90, FreeEntries 540, AllEntries 630, NameSpaces 3
DEBUG | ??:??:?? 0 Setup Preferences in Flash Storage
DEBUG | ??:??:?? 0 Number of Device Reboots: 14
ESP_ERROR_CHECK_WITHOUT_ABORT failed: esp_err_t 0x105 (ESP_ERR_NOT_FOUND) at 0x40096dc3
file: "src/platform/esp32/BleOta.cpp" line 16
func: static const esp_partition_t* BleOta::findEspOtaAppPartition()
expression: esp_ota_get_partition_description(part, &app_desc)
ESP_ERROR_CHECK_WITHOUT_ABORT failed: esp_err_t 0x102 (ESP_ERR_INVALID_ARG) at 0x40096dc3
file: "src/platform/esp32/BleOta.cpp" line 30
func: static String BleOta::getOtaAppVersion()
expression: esp_ota_get_partition_description(part, &app_desc)
DEBUG | ??:??:?? 0 No OTA firmware available
INFO  | ??:??:?? 0 Initializing NodeDB
INFO  | ??:??:?? 0 Loading /prefs/db.proto
INFO  | ??:??:?? 0 Loaded saved devicestate version 20
INFO  | ??:??:?? 0 Loading /prefs/config.proto
INFO  | ??:??:?? 0 Loaded saved config version 20
INFO  | ??:??:?? 0 Loading /prefs/module.proto
INFO  | ??:??:?? 0 Loaded saved moduleConfig version 20
INFO  | ??:??:?? 0 Loading /prefs/channels.proto
INFO  | ??:??:?? 0 Loaded saved channelFile version 20
[   569][E][vfs_api.cpp:105] open(): /littlefs/oem/oem.proto does not exist, no permits for creation
INFO  | ??:??:?? 0 No /oem/oem.proto preferences found
DEBUG | ??:??:?? 0 Number of Device Reboots: 14
DEBUG | ??:??:?? 0 Expanding short PSK #1
INFO  | ??:??:?? 0 Wanted region 3, using EU_868
DEBUG | ??:??:?? 0 region=3, NODENUM=0x25979d88, dbsize=0
INFO  | ??:??:?? 0 Saving /prefs/db.proto
[   776][D][Tone.cpp:124] tone(): _pin=2, frequency=185 Hz, duration=125 ms
[   777][D][Tone.cpp:31] tone_task(): Task received from queue TONE_START: _pin=2, frequency=185 Hz, duration=125 ms
[   783][D][Tone.cpp:33] tone_task(): Setup LED controll on channel 0
E (2108) ledc: ledc_get_duty(739): LEDC is not initialized
[   939][D][Tone.cpp:124] tone(): _pin=2, frequency=233 Hz, duration=125 ms
[   940][D][Tone.cpp:31] tone_task(): Task received from queue TONE_START: _pin=2, frequency=233 Hz, duration=125 ms
[   945][D][Tone.cpp:33] tone_task(): Setup LED controll on channel 0
[  1101][D][Tone.cpp:124] tone(): _pin=2, frequency=277 Hz, duration=250 ms
[  1102][D][Tone.cpp:31] tone_task(): Task received from queue TONE_START: _pin=2, frequency=277 Hz, duration=250 ms
[  1107][D][Tone.cpp:33] tone_task(): Setup LED controll on channel 0
DEBUG | ??:??:?? 1 Read RTC time from PCF8563 as 1689601458
DEBUG | 13:44:18 1 Using MSL altitude model
DEBUG | 13:44:18 1 WANT GPS=1
INFO  | 13:44:18 1 L76K GNSS init succeeded, using L76K GNSS Module
DEBUG | 13:44:18 2 GxGSA NOT available
[  2296][E][vfs_api.cpp:105] open(): /littlefs/prefs/cannedConf.proto does not exist, no permits for creation
INFO  | 13:44:18 2 No /prefs/cannedConf.proto preferences found
INFO  | 13:44:18 2 CannedMessageModule is enabled
INFO  | 13:44:18 2 Loading /prefs/ringtone.proto
INFO  | 13:44:18 2 Initializing External Notification Module
INFO  | 13:44:18 2 Using Pin 2 in digital mode
INFO  | 13:44:18 2 Doing EInk init
E (3694) gpio: gpio_set_level(226): GPIO output gpio_num error
[  2378][E][esp32-hal-gpio.c:102] __pinMode(): Invalid pin selected
INFO  | 13:44:18 2 Turning on screen
DEBUG | 13:44:18 2 Updating E-Paper... _PowerOn : 146996
_Update_Full : 928000
_Update_Part : 325000
_PowerOff : 62000
done
DEBUG | 13:44:20 3 Module wants a UI Frame
DEBUG | 13:44:20 3 Module wants a UI Frame
WARN  | 13:44:20 3 RF95Interface(cs=14, irq=25, rst=26, busy=-1)
INFO  | 13:44:20 3 Starting meshradio init...
DEBUG | 13:44:20 3 (bw=250, sf=11, cr=4/8) packet symLen=8 ms, payloadSize=0, time 231 ms
DEBUG | 13:44:20 3 (bw=250, sf=11, cr=4/8) packet symLen=8 ms, payloadSize=253, time 3246 ms
INFO  | 13:44:20 4 Radio freq=869.525, config.lora.frequency_offset=0.000
INFO  | 13:44:20 4 Set radio: region=EU_868, name=LongFast, config=0, ch=0, power=27
INFO  | 13:44:20 4 Radio myRegion->freqStart -> myRegion->freqEnd: 869.400024 -> 869.650024 (0.250000 mhz)
INFO  | 13:44:20 4 Radio myRegion->numChannels: 1 x 250.000kHz
INFO  | 13:44:20 4 Radio channel_num: 1
INFO  | 13:44:20 4 Radio frequency: 869.525024
INFO  | 13:44:20 4 Slot time: 42 msec
INFO  | 13:44:20 4 Set radio: final power level=20
DEBUG | 13:44:20 4 Current limit set to 100.000000
DEBUG | 13:44:20 4 Current limit set result 0
INFO  | 13:44:20 4 RF95 init result 0
INFO  | 13:44:20 4 Frequency set to 869.525024
INFO  | 13:44:20 4 Bandwidth set to 250.000000
INFO  | 13:44:20 4 Power output set to 20
INFO  | 13:44:20 4 RF95 Radio init succeeded, using RF95 radio
INFO  | 13:44:20 4 Not using WIFI
DEBUG | 13:44:20 4 (bw=250, sf=11, cr=4/8) packet symLen=8 ms, payloadSize=237, time 3057 ms
DEBUG | 13:44:20 4 LoRA 
                        f�Ʌѕ�= 77.526985 bytes / sec
INFO  | 13:44:20 4 PowerFSM init, USB power=1
DEBUG | 13:44:20 4 Enter state: BOOT
[  4095][D][esp32-hal-cpu.c:244] setCpuFrequencyMhz(): PLL: 320 / 4 = 80 Mhz, APB: 80000000 Hz
DEBUG | 13:44:20 4 [Screen] Screen: Started...
DEBUG | 13:44:20 4 [Screen] Updating E-Paper... _PowerOn : 146997
_Update_Part : 326001
_Update_Part : 326001
_PowerOff : 63001
done
DEBUG | 13:44:21 5 [GPS] NMEA GPS time 2023-07-17 13:44:22
DEBUG | 13:44:21 5 [GPS] Upgrading time to RTC 1689601462 secs (quality 4)
DEBUG | 13:44:22 5 [GPS] PCF8563_RTC setDateTime 2023-07-17 13:44:22 1689601462
DEBUG | 13:44:22 5 [GPS] Read RTC time from PCF8563 as 1689601462
DEBUG | 13:44:22 5 [GPS] hasValidLocation RISING EDGE
DEBUG | 13:44:22 5 [GPS] WANT GPS=0
DEBUG | 13:44:22 5 [GPS] publishing pos@64b545b6:2, hasVal=1, GPSlock=1
DEBUG | 13:44:22 5 [GPS] New GPS pos@64b545b6:3 lat=-xx.491858, lon=xx.385347, alt=1201, pdop=1.83, track=356.14, speed=0.00, sats=7
DEBUG | 13:44:22 5 [GPS] onGPSChanged() pos@64b545b6, time=1689601462, lat=-xx4918583, lon=xx3853475, alt=1201
INFO  | 13:44:22 5 [GPS] updatePosition LOCAL pos@64b545b6, time=1689601462, latI=-xx4918583, lonI=xx3853475, alt=1201
DEBUG | 13:44:22 5 [GPS] Node status update: 1 online, 2 total
DEBUG | 13:44:22 5 [cardKB] Using I2C Bus 0 (the first one)
INFO  | 13:44:22 5 [RangeTestModule] Range Test Module - Disabled
DEBUG | 13:44:23 6 [Screen] Updating E-Paper... _PowerOn : 146997
_Update_Part : 326001
_Update_Part : 325001
_PowerOff : 63001
done
DEBUG | 13:44:23 7 [PowerFSM] Enter state: POWER
INFO  | 13:44:23 7 [PowerFSM] Initialise the NimBLE bluetooth module
DEBUG | 13:44:24 7 [Screen] Updating E-Paper... _PowerOn : 146997
_Update_Part : 326001
_Update_Part : 326001
_PowerOff : 63001
done
INFO  | 13:44:26 9 [Screen] Done with boot screen...
DEBUG | 13:44:26 9 [Screen] showing standard frames
DEBUG | 13:44:26 9 [Screen] Showing 0 module frames
DEBUG | 13:44:26 9 [Screen] Total frame count: 83
DEBUG | 13:44:26 9 [Screen] Added modules.  numframes: 0
DEBUG | 13:44:26 9 [Screen] Finished building frames. numframes: 3
DEBUG | 13:44:26 9 [Screen] Updating E-Paper... _PowerOn : 146997
_Update_Part : 326001
_Update_Part : 325001
_PowerOff : 63001
done
26

Update

image
image1568×2076 178 KB

Enabled Battery Monitoring

390mAh@3.7V

Add needed section to variant.h to enable battery montiroing

#define BATTERY_PIN 35
#define ADC_CHANNEL ADC1_GPIO35_CHANNEL
// https://github.com/m5stack/M5Core-Ink/blob/master/examples/Basics/FactoryTest/FactoryTest.ino#L58
//  VBAT
//   |
//  R83 (3K)
//   +
//  R86 (11K)
//   |
//  GND
// https://github.com/m5stack/M5Core-Ink/blob/master/examples/Basics/FactoryTest/FactoryTest.ino#L58
#define ADC_MULTIPLIER 5 // Just a guess for now... more detailed getBatVoltage above
                         // https://embeddedexplorer.com/esp32-adc-esp-idf-tutorial/

Log output

DEBUG | 14:42:16 4724 [Power] Battery: usbPower=0, isCharging=0, batMv=4165, batPct=96
DEBUG | 14:42:36 4744 [Power] Battery: usbPower=0, isCharging=0, batMv=4150, batPct=94
DEBUG | 14:42:56 4764 [Power] Battery: usbPower=0, isCharging=0, batMv=4150, batPct=94
DEBUG | 14:43:16 4784 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:43:36 4804 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:43:56 4824 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:44:16 4844 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:44:36 4864 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:44:56 4884 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:45:16 4904 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:45:36 4924 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:45:56 4944 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:46:16 4964 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:46:36 4984 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:46:56 5004 [Power] Battery: usbPower=0, isCharging=0, batMv=4160, batPct=95
DEBUG | 14:47:16 5024 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:47:36 5044 [Power] Battery: usbPower=0, isCharging=0, batMv=4165, batPct=96
DEBUG | 14:47:56 5064 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:48:16 5084 [Power] Battery: usbPower=0, isCharging=0, batMv=4160, batPct=95
DEBUG | 14:48:36 5104 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:48:56 5124 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:49:16 5144 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:49:36 5164 [Power] Battery: usbPower=0, isCharging=0, batMv=4180, batPct=97
DEBUG | 14:49:56 5184 [Power] Battery: usbPower=0, isCharging=0, batMv=4180, batPct=97
DEBUG | 14:50:16 5204 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:50:36 5224 [Power] Battery: usbPower=0, isCharging=0, batMv=4180, batPct=97
DEBUG | 14:50:56 5244 [Power] Battery: usbPower=0, isCharging=0, batMv=4155, batPct=95
DEBUG | 14:51:16 5264 [Power] Battery: usbPower=0, isCharging=0, batMv=4165, batPct=96
DEBUG | 14:51:36 5284 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:51:56 5304 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:52:16 5324 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:52:36 5344 [Power] Battery: usbPower=0, isCharging=0, batMv=4180, batPct=97
DEBUG | 14:52:56 5364 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:53:16 5384 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:53:36 5404 [Power] Battery: usbPower=0, isCharging=0, batMv=4175, batPct=97
DEBUG | 14:53:56 5424 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96
DEBUG | 14:54:16 5444 [Power] Battery: usbPower=0, isCharging=0, batMv=4170, batPct=96

Also tested SX1280 OK but SX1262 failed init -2


//\ E S H T /\ S T / C

INFO  | ??:??:?? 0 Booted, wake cause 0 (boot count 1), reset_reason=reset
DEBUG | ??:??:?? 0 Filesystem files (16384/1048576 Bytes):
DEBUG | ??:??:?? 0  /prefs/channels.proto (53 Bytes)
DEBUG | ??:??:?? 0  /prefs/config.proto (92 Bytes)
DEBUG | ??:??:?? 0  /prefs/db.proto (266 Bytes)
[   120][I][esp32-hal-i2c.c:75] i2cInit(): Initialising I2C Master: sda=21 scl=22 freq=100000
DEBUG | ??:??:?? 0 Using analog input 35 for battery level
INFO  | ??:??:?? 0 ADCmod: ADC characterization based on reference voltage stored in eFuse
INFO  | ??:??:?? 0 Scanning for i2c devices...
[   147][W][Wire.cpp:301] begin(): Bus already started in Master Mode.
DEBUG | ??:??:?? 0 Scanning for i2c devices on port 1
DEBUG | ??:??:?? 0 I2C device found at address 0x51
INFO  | ??:??:?? 0 PCF8563 RTC found
INFO  | ??:??:?? 0 1 I2C devices found
DEBUG | ??:??:?? 0 acc_info = 0
INFO  | ??:??:?? 0 Meshtastic hwvendor=42, swver=2.1.18.5c34e36b
DEBUG | ??:??:?? 0 Setting random seed 4067771156
DEBUG | ??:??:?? 0 Total heap: 177824
DEBUG | ??:??:?? 0 Free heap: 143976
DEBUG | ??:??:?? 0 Total PSRAM: 0
DEBUG | ??:??:?? 0 Free PSRAM: 0
DEBUG | ??:??:?? 0 NVS: UsedEntries 70, FreeEntries 560, AllEntries 630, NameSpaces 3
DEBUG | ??:??:?? 0 Setup Preferences in Flash Storage
DEBUG | ??:??:?? 0 Number of Device Reboots: 10
ESP_ERROR_CHECK_WITHOUT_ABORT failed: esp_err_t 0x105 (ESP_ERR_NOT_FOUND) at 0x40096daf
file: "src/platform/esp32/BleOta.cpp" line 16
func: static const esp_partition_t* BleOta::findEspOtaAppPartition()
expression: esp_ota_get_partition_description(part, &app_desc)
ESP_ERROR_CHECK_WITHOUT_ABORT failed: esp_err_t 0x102 (ESP_ERR_INVALID_ARG) at 0x40096daf
file: "src/platform/esp32/BleOta.cpp" line 30
func: static String BleOta::getOtaAppVersion()
expression: esp_ota_get_partition_description(part, &app_desc)
DEBUG | ??:??:?? 0 No OTA firmware available
INFO  | ??:??:?? 0 Initializing NodeDB
INFO  | ??:??:?? 0 Loading /prefs/db.proto
INFO  | ??:??:?? 0 Loaded saved devicestate version 20
INFO  | ??:??:?? 0 Loading /prefs/config.proto
INFO  | ??:??:?? 0 Loaded saved config version 20
[   320][E][vfs_api.cpp:105] open(): /littlefs/prefs/module.proto does not exist, no permits for creation
INFO  | ??:??:?? 0 No /prefs/module.proto preferences found
INFO  | ??:??:?? 0 Installing default ModuleConfig
INFO  | ??:??:?? 0 Loading /prefs/channels.proto
INFO  | ??:??:?? 0 Loaded saved channelFile version 20
[   363][E][vfs_api.cpp:105] open(): /littlefs/oem/oem.proto does not exist, no permits for creation
INFO  | ??:??:?? 0 No /oem/oem.proto preferences found
DEBUG | ??:??:?? 0 Number of Device Reboots: 10
DEBUG | ??:??:?? 0 Expanding short PSK #0
INFO  | ??:??:?? 0 Wanted region 13, using LORA_24
DEBUG | ??:??:?? 0 region=13, NODENUM=0x25979364, dbsize=0
INFO  | ??:??:?? 0 Saving /prefs/db.proto
[   519][D][Tone.cpp:124] tone(): _pin=2, frequency=185 Hz, duration=125 ms
[   520][D][Tone.cpp:31] tone_task(): Task received from queue TONE_START: _pin=2, frequency=185 Hz, duration=125 ms
[   526][D][Tone.cpp:33] tone_task(): Setup LED controll on channel 0
E (1594) ledc: ledc_get_duty(739): LEDC is not initialized
[   682][D][Tone.cpp:124] tone(): _pin=2, frequency=233 Hz, duration=125 ms
[   682][D][Tone.cpp:31] tone_task(): Task received from queue TONE_START: _pin=2, frequency=233 Hz, duration=125 ms
[   688][D][Tone.cpp:33] tone_task(): Setup LED controll on channel 0
[   844][D][Tone.cpp:124] tone(): _pin=2, frequency=277 Hz, duration=250 ms
[   844][D][Tone.cpp:31] tone_task(): Task received from queue TONE_START: _pin=2, frequency=277 Hz, duration=250 ms
[   850][D][Tone.cpp:33] tone_task(): Setup LED controll on channel 0
DEBUG | ??:??:?? 1 Read RTC time from PCF8563 as 1691241813
WARN  | 13:23:33 1 No GPS found - running without GPS
INFO  | 13:23:33 1 External Notification Module Disabled
INFO  | 13:23:33 1 Doing EInk init
E (2251) gpio: gpio_set_level(226): GPIO output gpio_num error
[  1190][E][esp32-hal-gpio.c:102] __pinMode(): Invalid pin selected
INFO  | 13:23:33 1 Turning on screen
DEBUG | 13:23:33 1 Updating E-Paper... _PowerOn : 144000
_Update_Full : 902000
_Update_Part : 317000
_PowerOff : 61000
done
DEBUG | 13:23:34 2 Module wants a UI Frame
DEBUG | 13:23:34 2 Module wants a UI Frame
WARN  | 13:23:34 2 SX128xInterface(cs=14, irq=25, rst=26, busy=13)
INFO  | 13:23:34 2 Starting meshradio init...
DEBUG | 13:23:34 2 (bw=812, sf=11, cr=4/8) packet symLen=2 ms, payloadSize=0, time 71 ms
DEBUG | 13:23:34 2 (bw=812, sf=11, cr=4/8) packet symLen=2 ms, payloadSize=253, time 998 ms
INFO  | 13:23:34 2 Radio freq=2404.469, config.lora.frequency_offset=0.000
INFO  | 13:23:34 2 Set radio: region=LORA_24, name=LongFast, config=0, ch=5, power=13
INFO  | 13:23:34 2 Radio myRegion->freqStart -> myRegion->freqEnd: 2400.000000 -> 2483.500000 (83.500000 mhz)
INFO  | 13:23:34 2 Radio myRegion->numChannels: 102 x 812.500kHz
INFO  | 13:23:34 2 Radio channel_num: 6
INFO  | 13:23:34 2 Radio frequency: 2404.468750
INFO  | 13:23:34 2 Slot time: 42 msec
INFO  | 13:23:34 2 Set radio: final power level=13
INFO  | 13:23:34 2 SX128x init result 0
INFO  | 13:23:34 2 Frequency set to 2404.468750
INFO  | 13:23:34 2 Bandwidth set to 812.500000
INFO  | 13:23:34 2 Power output set to 13
INFO  | 13:23:34 2 SX1280 Radio init succeeded, using SX1280 radio
INFO  | 13:23:34 2 Not using WIFI
DEBUG | 13:23:34 2 (bw=812, sf=11, cr=4/8) packet symLen=2 ms, payloadSize=237, time 930 ms
DEBUG | 13:23:34 2 LoRA bitrWê’ª¢rš²ÊÊåѕ́/ sec
INFO  | 13:23:34 2 PowerFSM init, USB power=1
DEBUG | 13:23:34 2 Enter state: BOOT
[  2863][D][esp32-hal-cpu.c:244] setCpuFrequencyMhz(): PLL: 320 / 4 = 80 Mhz, APB: 80000000 Hz
DEBUG | 13:23:34 2 [Power] Battery: usbPower=0, isCharging=0, batMv=0, batPct=0
DEBUG | 13:23:34 2 [Screen] Screen: Started...
DEBUG | 13:23:34 2 [Screen] Updating E-Paper... _PowerOn : 144001
_Update_Part : 317001
_Update_Part : 317001
_PowerOff : 61001
done
INFO  | 13:23:35 3 [RangeTestModule] Range Test Module - Disabled
DEBUG | 13:23:36 4 [Screen] Updating E-Paper... _PowerOn : 144001
_Update_Part : 317001
_Update_Part : 317001
_PowerOff : 61001
done
DEBUG | 13:23:37 5 [PowerFSM] Enter state: POWER
INFO  | 13:23:37 5 [PowerFSM] Initialise the NimBLE bluetooth module
DEBUG | 13:23:38 6 [Screen] Updating E-Paper... _PowerOn : 144001
_Update_Part : 317001
_Update_Part : 317001
_PowerOff : 61001
done
INFO  | 13:23:40 8 [Screen] Done with boot screen...
DEBUG | 13:23:40 8 [Screen] showing standard frames
DEBUG | 13:23:40 8 [Screen] Showing 0 module frames
DEBUG | 13:23:40 8 [Screen] Total frame count: 83
DEBUG | 13:23:40 8 [Screen] Added modules.  numframes: 0
DEBUG | 13:23:40 8 [Screen] Finished building frames. numframes: 4
27

Update for ADC from M5Stack CoreInk Schematic

28

Updated PCB

Screenshot_20231026_193642
Screenshot_20231026_193642958×622 56.7 KB

BOM

Still need to double check these

The actual SMA connector i used for my use
C411575 - KH-SMA-K513-G | Shenzhen Kinghelm Elec | RF Connectors / Coaxial Connectors | JLCPCB

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price
1 8X2PIN_2.54 CZ U3 8X2PIN_2.54 CZ 1 Double row straight 2*8Headers Pins 2.54mm BOOMELE LCSC C68234 0.071
2 C174049 RESET SW-SMD_4P-L4.5-W4.5-P3.00-LS6.8 1 C174049 BOOMELE(Boom Precision Elec) LCSC C174049 0.017
3 Header-Male-2.54_1x4 H1 HDR-TH_4P-P2.54-V-M 1 210S-1*4P L=11.6MMGold-plated black Ckmtw LCSC C124378 0.04
4 RFM95W U1 RFM95W 1 RFM95W HopeRF Distrelec RFM95W
5 SMA-LR-PCB U4 SMA-LR-PCB 1 SMA-KE-P902 DreamLNK(骏晔科技) LCSC C914557 0.753

Gerbers

available on Discord

Working

  • HopeRF RFM95W SX1276
  • User button
  • Reset button
  • WiFi/Bluetooth
  • E-ink with fast partial updates (GDEW0154M09 200x200) - does have some ghosting effect
  • Meshtastic-cli
  • GPS - Mini GPS/BDS Unit (AT6558) | m5stack-store - connects to bottom port
  • I2C (CardKB, Sensors)
  • PWM Buzzer

Buy M5Stack CoreInk

Buy M5Stack GPS

1 Like
29

2024 Updates

Fixes to support SX1262 Waveshare Core SX1262 module

Still todo

new pcb
test
test i2c

image
image1602×2193 215 KB

2 Likes