Lien	Espressif ESP32	Espressif ESP8266	Ameba RTL8195	Ameba RTL8710
Date de sortie	2016	2014	1 jul. 2016	1 aoû. 2016
Caractéristiques
Mémoire vive	520 KB	50 KB less than		48 KB available to user
CPU	Tensilica Xtensa LX6 32 bit Dual-Core @ 160 / 240Mhz	Tensilica LX106 32 bit @ 80 MHz (up to 160 MHz)	ARM Cortex M3 32 bit @ 166 MHz	ARM Cortex M3 32 bit @ 83 MHz
Flash	up to 64 MBytes	1, 2, 4, 8 or 16 MB		1MB Built-in
Tension d'entrée	2.2 V - 3.6 V	3.0 V - 3.6 V	3.0 V - 3.6 V	3.0 V - 3.6 V
Operating Current	80 mA average	80 mA average	80 mA average	80 mA average
Temperature Range	-40°C to 125°C	-40°C to 125°C	-40°C to +125°C	-40°C to +125°C
Standards	FCC/CE/TELEC/KCC	FCC/CE/TELEC/SRRC	FCC/CE/TELEC/SRRC	FCC/CE/TELEC/SRRC
Connectivité
Wi-Fi	Oui 802.11b/g/n	Oui 802.11b/g/n (max 65Mbps)	Oui 802.11b/g/n	Oui 802.11b/g/n
Bluetooth®	Oui 4.2 BR/EDR + BLE	Non	Non	Non
UART	3	2	3x UART	2x UART
I/O
I²C	Oui up to 2	Oui up to 1	Oui up to 4	Oui up to 1
GPIO	34	17 (up to)	30 (up to)	17 (up to)
PCM	Oui up to 1	Non	Oui up to 2	Non
PWM	Oui up to 8	Oui 4	Oui up to 4	Oui up to 4
ADC	Oui 12 bit SAR ADC up to 18 channels	Oui 10 bit	Oui 2 channels	Non
DAC	Oui 8 bit up to 2 channels	Non	Oui 1 channel	Non
Dimensions
Package	QFN-48	QFN-32	QFN-48	QFN-48
Hauteur	6 mm	5 mm	6 mm	6 mm
Largeur	6 mm	5 mm	6 mm	6 mm
Liens
Site web	espressif.com/...	espressif.com/...	amebaiot.com/en/	amebaiot.com/en/
Wikipédia	wikipedia.org/...	wikipedia.org/...
Voir sur Amazon	amazon.com/...	amazon.com/...	amazon.com/...