Link	Espressif ESP32	Espressif ESP8266	Ameba RTL8195	Ameba RTL8710
Data di rilascio	2016	2014	2016-07-01	2016-08-01
Product details
RAM	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
Tensione di ingresso	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
Connettività
Wi-Fi	Sì 802.11b/g/n	Sì 802.11b/g/n (max 65Mbps)	Sì 802.11b/g/n	Sì 802.11b/g/n
Bluetooth®	Sì 4.2 BR/EDR + BLE	No	No	No
UART	3	2	3x UART	2x UART
I/O
I²C	Sì up to 2	Sì up to 1	Sì up to 4	Sì up to 1
GPIO	34	17 (up to)	30 (up to)	17 (up to)
PCM	Sì up to 1	No	Sì up to 2	No
PWM	Sì up to 8	Sì 4	Sì up to 4	Sì up to 4
ADC	Sì 12 bit SAR ADC up to 18 channels	Sì 10 bit	Sì 2 channels	No
DAC	Sì 8 bit up to 2 channels	No	Sì 1 channel	No
Dimensioni
Package	QFN-48	QFN-32	QFN-48	QFN-48
Altezza	6 mm	5 mm	6 mm	6 mm
Larghezza	6 mm	5 mm	6 mm	6 mm
Collegamenti
Sito web	espressif.com/...	espressif.com/...	amebaiot.com/en/	amebaiot.com/en/
Wikipedia	wikipedia.org/...	wikipedia.org/...
See on Amazon	amazon.com/...	amazon.com/...	amazon.com/...