Source: https://www.rtl8710forum.com/viewtopic.php?f=3&t=5Package: QFN-48 (6 x 6 mm)
CPU: ARM Cortex M3 @ 166MHz
RAM: 48KiB available for user firmware
Flash: 1MiB on-chip
WiFi: 802.11 g/n (up to 150 Mbps) 1x1
GPIO: Up to 21 GPIO pins
I²C: Up to 3 I²C ports
PCM: Up to 2
PWM: Up to 4 PWM ports
UART: 1 high speed, 1 low speed
Power requirements: 80mA @ 3.0 to 3.6V
Temperature range: -40°C to + 125°C
Certifications (not yet confirmed): FCC/CE/TELEC/SRRC/WiFi Alliance
There are even "rtlduino" development boards shaped like the NodeMCU board:
https://www.aliexpress.com/item/RTL8710 ... 96730.html
https://www.aliexpress.com/item/Rtlduin ... 11402.html
http://www.offerany.com/p-529526466941.html
Looks like you can mount the RTL-00 on a NodeMCU board as it is pin compatible with an ESP-12E:
https://www.rtl8710forum.com/viewtopic. ... 0&p=23#p23
Compare RTL8710 with the ESP8266:
http://www.cnx-software.com/2016/07/28/ ... -2-and-up/
Not much on hackaday yet:
http://hackaday.com/tag/rtl8710/