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Comparison table for ESP8266/ESP32/ESP32-S2/ESP32-S3/ESP32-C3/ESP32-C6

A minimal table to compare the Espressif's MCU families.

| | ESP32 | ESP32-S2 | ESP32-S3 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-H2 | ESP32-H4 | |--------------------------- |------------------------------------------------------------------- |--------------------------------------------- |------------------------------------------------------ |------------------------------------------------------ |--------------------------------------------- |------------------------------------------------------ |----------

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# The microcontroller used was a SeeedStudio XIAO RP2040. 
# Modify `spi` and `cs` appropriately to work on any other micro.

from machine import Pin, SPI

spi = SPI(0, baudrate=20_000_000) # Initialise SPI at 20MHz. Note that on RP2040 due to clock configurations this is closer to 15MHz.

cs = Pin.board.CSn
cs.init(Pin.OUT, value=1) # Initialise CS high, ie no transmission

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def i2cdetect(addresses):
    print("     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f")
    for i in range(0x8):
        print(f"{i*0x10:02x}:", end="")
        for j in range(0x10):
            addr = i * 0x10 + j
            if 0x02 < addr < 0x78:
                if addr in addresses:
                    print(f" {addr:02x}", end="")
                else:

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#define MICROPY_HW_BOARD_NAME               "NUCLEO_H503RB"
#define MICROPY_HW_MCU_NAME                 "STM32H503RB"

#define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_CORE_FEATURES)

#define MICROPY_PY_PYB_LEGACY               (0)
#define MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE (1)
#define MICROPY_HW_ENABLE_RTC               (1)
#define MICROPY_HW_ENABLE_RNG               (1)
#define MICROPY_HW_ENABLE_ADC               (1)

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Mattie Math

Minivan

1) 14c + 19h = 421
2) c + h = 24

3) [2 x 14]
14c + 14h = 336

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import re
tpp = """
                                ┌────┐
                            ╭───┤    ├───╮
                            │   │    │   │
                  [MO] [23] │ ⌾ └────┘ ⌾ │ [BAT]
                  [MI] [19] │ ⌾        ▣ │ ⏚
                 [SCK] [18] │ ⌾        ⌾ │ [5V]
                  [SS] [ 5] │ ⌾        ⌾ │ [3V3]
                 [SCL] [22] │ ⌾        ⌾ │ [ 4] [TCH0] [ADC2-0] [RTC10]

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  ▁▁
▁▁▏▕▁▁
  ▏▕
  ▔▔

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Feature	Supported
Pin	✅
PWM	❌
ADC	❌
DAC	❌
Timer	❌
UART	❌
Soft I2C	❌
I2C	❌

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diff --git a/ports/stm32/boards/NODE_151/mpconfigboard.h b/ports/stm32/boards/NODE_151/mpconfigboard.h
index a16a88e6e..f5344ca0d 100644
--- a/ports/stm32/boards/NODE_151/mpconfigboard.h
+++ b/ports/stm32/boards/NODE_151/mpconfigboard.h
@@ -1,8 +1,8 @@
 #define MICROPY_HW_BOARD_NAME "Node151v2.2"
 #define MICROPY_HW_MCU_NAME "STM32L151CCU"
 
-#define MICROPY_HW_UART_REPL		PYB_UART_1
-#define MICROPY_HW_UART_REPL_BAUD	115200

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diff --git a/ports/stm32/boards/NODE_151/mpconfigboard.h b/ports/stm32/boards/NODE_151/mpconfigboard.h
index 99ffc1f70..23358e9a9 100644
--- a/ports/stm32/boards/NODE_151/mpconfigboard.h
+++ b/ports/stm32/boards/NODE_151/mpconfigboard.h
@@ -5,7 +5,7 @@
 #define MICROPY_HW_ENABLE_ADC (0)
 #define MICROPY_HW_ENABLE_DMA (0)
 #define MICROPY_HW_HAS_SWITCH (0) // Ought to be able to turn back on
-#define MICROPY_HW_HAS_FLASH (1)
+#define MICROPY_HW_HAS_FLASH (0)