Link	Raspberry Pi RP2040	Espressif ESP32	Espressif ESP32-S2	STM32 F1 series	STM32 G4 series	STM32F103C8T6	Espressif ESP8266	Teensy 4.1
Nome corto	RP2040	ESP32	ESP32-S2	STM32 F1	STM32 G4	STM32F103C8T6	ESP8266	Teensy 4.1
Sito web	raspberrypi.org/...	espressif.com/...	espressif.com/...	www.st.com/...	www.st.com/...	www.st.com/...	espressif.com/...	pjrc.com/...
Data di rilascio	2021-01-21	2016	2019	2007	2019	2007 Jun 01	2014	2020 May 11
Product details
CPU	Arm Cortex-M0+ Dual-core @133MHz	Tensilica Xtensa LX6 32 bit Dual-Core @ 160 / 240Mhz	Tensilica Xtensa LX7 32 bit Single-Core @ 240Mhz	ARM Cortex-M3 @ 24 / 36 / 48 / 72 MHz	ARM Cortex-M4F @ 170 MHz FPU, DSP instructions	32-bit ARM Cortex M3 72MHz max	Tensilica LX106 32 bit @ 80 MHz (up to 160 MHz)	NXP IMXRT1062DVJ6A ARM Cortex-M7 at 600 MHz with FPU (32 bit float and 64 bit double precision), DSP instructions.
Coprocessor		ULP	ULP (RISC-V)
RAM	264 KB	520 KB	320 KB	4 KB - 96 KB	32 KB - 128 KB	20 kb	50 KB less than	1.024 KB RAM (512K tightly coupled)
ROM (Flash)		448 KB	128 KB	16 KB - 1024 KB	128 KB - 512 KB	64 Kb or 128 Kb	0 use external SPI flash	7.936 KB Flash
UART	2	3	2			3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control	2	8 UARTS
SPI	Sì 2 (OSPI)	Sì 4	Sì 4 (OSPI)			Sì 2	Sì 2	Sì 2
Wi-Fi	No	Sì 802.11b/g/n	Sì 802.11b/g/n			No	Sì 802.11b/g/n (max 65Mbps)	No
Bluetooth®	No	Sì 4.2 BR/EDR + BLE	No			No	No	No
USB Host	Sì	No	Sì			No	No	Sì 2 usb ports (1 as USB host, 5 pin header with power management)
Ethernet (LAN, RJ45)	No	Sì 10/100Mbps	No			No	No	Sì Ethernet 10/100 Mbit (6 pin on board header). Teensy 4.1 contains an Ethernet controller and Ethernet PHY chip.
RTC Memory		16 KB	16 KB			No		16 bytes of memory are located within the RTC. If a coin cell is connected to VBAT, contents of this memory is preserved while power is off. This memory is accessed as 32 bit registers LPGPR0-LPGPR3.
External SRAM		8 MB up to	128 MB up to					16 MB up to PSRAM (QSPI Memory Expansion, ready to solder 1 or 2 chips such as IPS6404LSQ or ESP PSRAM64H on board)
External Flash		16 MB up to	1 GB up to				16 MB up to	8 MB up to (QSPI Memory Expansion, board ready to solder additional 8MB Flash chip such as 25Q128JVSQ)
ESP-MESH	No	Sì	Sì			No	Sì	No
CAN		Sì v2.0				Sì	No	Sì 3
GPIO	30	34	43			80 (up to)	17 (up to)	55 input/output signal pins (42 are accessible when used with a solderless breadboard)
Hall effect sensor	No	Sì	No			No	No	No
Capteur de température	No	Sì	Sì			Sì	No	Sì A built in temperature sensor allows reading the temperature inside the MCU chip
Touch sensors		10	14			No	No	No
I²C	Sì	Sì up to 2	Sì up to 2			Sì up to 2	Sì up to 1	Sì 3
I2S	1	2	1			1	2	2 (I2S/TDM)
ADC	Sì x4 12-bit	Sì 12 bit SAR ADC up to 18 channels	Sì 12 bit SAR ADC up to 20 channels			Sì 2 x 12-bit, 1 μs A/D converters (up to 16 channels)	Sì 10 bit	Sì 18 pins total (12 bit, 2 Converters, 4 comparators)
DAC	No	Sì 8 bit up to 2 channels	Sì 8 bit up to 2 channels			Sì	No	No
PWM	Sì up to 16	Sì up to 8	Sì 8			Sì 37	Sì 4	Sì 31 pins/outputs (3x PWM 32 bit, 32x PWM 16 bit)
SDMMC	No	Sì	No			No	No	Sì 1 SDIO (4 bit) native Micro SD Card
RMT (remote control)	No	Sì	Sì			No	No	No
LCD Interface	No	No	Sì			No	No	No not dedicated
Camera Interface	No	No	Sì			No	No	No not dedicated
Deep sleep consumption	18 µA (Dormant) 39 µA (Sleep)	10 µA, Yes	5 µA			1 Yes	20 µA, Yes
Sicurezza
Secure flash		1024-bit OTP secure boot	4096-bit OTP secure boot
Cryptography support		AES, SHA-2, RSA, ECC, RNG	AES-128/192/256, SHA-2, RSA, RNG, HMAC, Digital Signature					Symmetric ciphers and one-way hash can be computed by hardware, but currently no library support exists to utilize this hardware.
Dimensioni
Altezza	7 mm	6 mm	7 mm				5 mm	0.16 in (4.07 mm) (no extra PSRAM or Flash included)
Larghezza	7 mm	6 mm	7 mm				5 mm	0.7 in (17.81 mm)
Peso