Mikro Arduino: ESP32

ESP32 Development Board ( Nano32 )

Nano32 is new ESP32 development board. It’s made by South East Asia based Gravitech, and combines ESP32 with an FTDI chip for USB to serial programming through the micro USB port. It also includes two buttons, and breadboard-friendly headers.

NANO32 Features

40MHz Crystal for CPU, 32.768KHz Crystal for RTC and low power operation

4MB Flash (32Mbit)

FTDI231 for USB to Serial

Auto-Reset for automatic flash

3.3V 0.5A Regulator (tested for working up to 1A)

2.5dBi Peak Gain, 0.5dBi Average Gain Chip Antenna

High quality PCB: design and manufacture in Thailand

Key Features

Xtensa® Dual-Core 32-bit LX6 microprocessors, up to 600 DMIPS
Integrated 520 KB SRAM
Integrated 802.11BGN HT40 Wi-Fi transceiver, baseband, stack and LWIP
Integrated dual mode Bluetooth (classic and BLE)
4 MByte flash (32Mbit)
2.2V to 3.6V operating voltage
-40°C to +125°C operating temperature

Wi-Fi

802.11 b/g/n/e/i
802.11 n (2.4 GHz), up to 150 Mbps
802.11 e: QoS for wireless multimedia technology
WMM-PS, UAPSD
A-MPDU and A-MSDU aggregation
Block ACK
Fragmentation and defragmentation
Automatic Beacon monitoring/scanning
802.11 i security features: pre-authentication and TSN
Wi-Fi Protected Access (WPA)/WPA2/WPA2-Enterprise/Wi-Fi Protected Setup (WPS)
Infrastructure BSS Station mode/SoftAP mode
Wi-Fi Direct (P2P), P2P Discovery, P2P Group Owner mode and P2P
Power Management
UMA compliant and certified
Antenna diversity and selection

Bluetooth

Compliant with Bluetooth v4.2 BR/EDR and BLE specification
Class-1, class-2 and class-3 transmitter without external power amplifier
Enhanced power control
+10 dBm transmitting power
NZIF receiver with -98 dBm sensitivity
Adaptive Frequency Hopping (AFH)
Standard HCI based on SDIO/SPI/UART
High speed UART HCI, up to 4 Mbps
BT 4.2 controller and host stack
Service Discover Protocol (SDP)
General Access Profile (GAP)
Security Manage Protocol (SMP)
Bluetooth Low Energy (BLE)
ATT/GATT
HID
All GATT-based profile supported
SPP-Like GATT-based profile
BLE Beacon
A2DP/AVRCP/SPP, HSP/HFP, RFCOMM
CVSD and SBC for audio codec
Bluetooth Piconet and Scatter-net

Sensors

Ultra low noise analog amplifier
Hall sensor
10x capacitive touch interface
32 kHz crystal oscillator

32x GPIO

3 x UARTs, including hardware flow control
3 x SPI
2 x I2S
12 x ADC input channels
2 x DAC
2 x I2C
PWM/timer input/output avalible on every GPIO pin
OpenOCD debug interface with 32 kB TRAX buffer
SDIO master/slave 50 MHz
Supports external SPI flash up to 16 MB
SD-card interface support

Security Related

IEEE 802.11 standard security features all supported, including WFA, WPA/WPA2 and WAPI
Secure boot
Flash encryption
1024-bit OTP, up to 768-bit for customers
Cryptographic hardware acceleration:
– AES
– HASH (SHA-2) library
– RSA
– ECC
– Random Number Generator (RNG)

Development Support

SDK Firmware for fast on-line programming
Open source toolchains based on GCC
Arduino IDE support
http://microcontrollerkits.blogspot.com/2016/10/esp32-develop-with-arduino-ide.html

ESP32 WiFi and Bluetooth LE Module form Espressif ( NEW )

So many of us have been happily using in the inexpensive ESP8266 chips for some time now for IOT applications, home control etc and long may that continue. They do have SOME issues – for example they are short of RAM memory to the point that all except critical subroutines have to be stored in FLASH and pulled out when needed. The somewhat slows things down as the 80Mhz processor (160Mhz at a pinch) has to pull stuff out of the external serial FLASH to use it. In practice the ESP8266 is still very fast but this is just one step that would be nice to avoid. Lack of IO lines also is a little painful as so many of the available lines are dual purpose – GPIO0 for example cannot be held low on powerup as it is used to put the processor into programming mode. We get around these issues but wouldn’t it be nice if we didn’t have to.

Espressif teased us about a successor to ESP8266 a few months ago that would support both WiFi and Bluetooth Low Energy, and John Lee, working for Espressif Systems, has now sent a letter to ESP8266 developers announcing the new wireless SoC with two Tensilica L108 cores and called ESP32.

Espressif ESP32 key improvements over ESP8266:

Faster WiFi – Wifi has been upgraded to support HT40 speed (144.4 Mbps) and has a new RF architecture to simplify the application schematics
Bluetooth Low Energy and Classic
Dual core processor – 2x Tensilica L108 processors clocked at up to 160 MHz
Low Power Mode Improvements – ADC conversions, level thresholds, etc.. can now be performed in deep sleep
Peripherals – Capacitive touch, ADCs, DACs, I2C. UART, SPI, SDIO, I2S, RMII, PMW, etc… but no USB.
More RAM – ~400 KB on-chip RAM
Security – Hardware accelerated AES and SSL, and more undisclosed improvements.
Simplified APIs – Not many details provided here, except WiFi APIs will be simplified, yet keep good flexibility and control.

One of my contact also informed me that there were two PGA (Programmable Gain Amplifier) blocks connected to two ADC blocks in the chip, which could be used for power metering with one PGA/ADC block used for voltage measurement, and one PGA/ADC block for current measurement. So ESP32 would offer a one chip solution for smart sockets. [Update: A few more information gathered from twitter: Close to 40 GPIOs, IPV4 and IPv6 support, beta@espressif.com is where you want to write to apply for a board, QFN package, not much more expensive than ESP8266, …]

The letter promises that beta testing will start soon with about 200 applications boards to be sent out, and a bounty program will be launched for people who can successfully compromise ESP32 security. The CEO also made a call to engineers who are interested in working with the company in Shanghai.

In case you’ve been hiding under a virtual rock over the last two years, you might have missed it when Espressif turned the IoT game on its head by releasing a chip with WiFi and a decent embedded processor for under $1 in bulk, and costing not much more than that in a module.

They’re looking to repeat the success of the ESP8266 with the ESP32, that should be coming out any time now. As we get closer to the release date, details start to dribble out. [Alberto], who makes very nice-looking pinout diagrams for a number of our favorite chips and modules, has already made us an ESP32 module pinout diagram.

And [Rudi] has been digging up nearly every crumb of info on the ESP32 that’s publicly available. For instance, it was through his website that we learned that the new RTOS SDK source is already up on GitHub.
https://github.com/espressif/ESP32_RTOS_SDK

There’s also a source of official information in the ESP32 forum, but there’s not much news there just yet. We expect this to change as more beta units make it out into the wild.

We covered the announcement of the forthcoming ESP32 last month, and we have to say that we’re looking forward to getting a module or two in our hands. Twin cores, BTLE support, and better DMA are tops on our list of neat features.

There’s also a source of official information in the ESP32 forum, but there’s not much news there just yet. We expect this to change as more beta units make it out into the wild.

We covered the announcement of the forthcoming ESP32 last month, and we have to say that we’re looking forward to getting a module or two in our hands. Twin cores, BTLE support, and better DMA are tops on our list of near features.

For more details, please refer to http://www.esp32.com

ESP32_MODULE_PCB_Processing_Requirement.zip: An excel template for PCB processing requirement of ESP32 Module.; (33.49 KiB)

ESP32_MODULE_PCB_LAYOUT.zip: Including 3 files:
ESP_MODULE_PCB_LAYOUT_DIAGRAM.pdf
ESP_MODULE.DSN
ESP_MODULE.PCB; (207.12 KiB)

ESP32_MODULE_BOM_LIST.zip: Introduce the BOM list of the ESP32 Module.; (47.22 KiB); ESP32 BUG BOUNTY, A MINIMUM OF US$1000!; ESP32 Bug Bounty Program (A MINIMUM OF US$1000!); Project Unofficial Development Kit for Espressif ESP32; http://programs74.ru/udkew32-en.html; Michael Grigorev has released a Beta version of Unofficial Development Kit for Espressif ESP32 (Windows)