According to Wikipedia's ESP32
page:
ESP32 is a series of low-cost, low-power
system on a chip microcontrollers with integrated
Wi-Fi and dual-mode
Bluetooth . The ESP32 series employs a
Tensilica Xtensa LX6 microprocessor in both dual-core and
single-core variations and includes built-in antenna switches, RF
balun , power amplifier, low-noise receive amplifier, filters, and power-management modules. ESP32 is created and developed by
Espressif Systems , a Shanghai-based Chinese company, and is manufactured by
TSMC using their 40 nm process.
[2] It is a successor to the
ESP8266 microcontroller.
Recently the ESP32 has been featured in a series of Single Board Computers (SBC) designed by Seon Rosenblum of Unexpected Maker, in the "Nano" (13x27mm), "Tiny" (18x32mm and 18x35mm) and "Feather" (23x51mm) form factors. These boards all have WiFi and support CircuitPython and MicroPython. The TinyPico boards are available with either USB Micro-B or USB-C power connectors.
TinyPico NANO#
TinyPico NANO (click to enlarge)
 |
Features & Specifications: #
- 32 bit Dual Core 240MHz
- 2.4GHz Wifi - 802.11b/g/n
- Bluetooth BLE 4.2
- 4MB SPI Flash
- 4MB Extra PSRAM
- USB + Serial/UART for programming
- 700mA 3.3 LDO Regulator
- LIPO Battery Management
- Optimised power path for low power battery usage
- VBAT pin for battery connection
- Enable pin for LDO on/off control
- 27x GPIO pins available
- dimensions: 13x17mm
Links#
TinyPico NANO pinout (click to enlarge)
 |
TinyPico V2 Micro-B and USB-C#
TinyPico Micro-B and USB-C (click to enlarge)
 |
Features & Specifications#
- Processing:
- 32-bit dual-core processor operating at 240 MHz
- 4 MB SPI flash
- 4 MB extra PSRAM
- Wireless:
- 2.4 GHz Wi-Fi - 802.11b/g/n
- Bluetooth BLE 4.2
- 3D antenna
- Power:
- 700 mAh 3.3 V LDO regulator
- Optimized power path for low-power battery usage
- LiPo battery management
- Battery pads on the bottom support both JST PH & MicroBlade connectors (included unassembled with every TinyPICO)
- Power (red) & charge (orange) LEDs
- Form-factor:
- Breadboard-friendly
- Oh, it’s tiny! Just 18 mm x 32 mm
- Connectivity:
- 14x GPIO broken out to standard pitch headers
- USB + serial/UART for programming
- APA102 RGB LED
- Control:
- MicroPython pre-installed
- Supports Arduino IDE
- Supports Espressif IDF
- Lots of example code and libraries
Links#
TinyPico pinout (click to enlarge)
 |
FeatherS2#
FeatherS2 (click to enlarge)
 |
Features & Specifications#
- 32-bit 240 MHz single-core processor
- 16 MB SPI Flash
- 8 MB extra PSRAM
- 2.4 GHz Wi-Fi - 802.11b/g/n
- 3D Antenna
- 2x 700 mA 3.3 V LDO regulator
- Optimised power path for low-power battery usage
- LiPo battery management
- Power (red), Charge (orange) & IO13 (blue) LEDs
- 21x GPIO
- USB-C
- USB backfeed protection
- APA102 RGB LED (CLK IO45, DATA IO40)
- ALS-PT19 Ambient Light Sensor (IO14)
- QWIIC/STEMMA connector
- Feather format
Links#
FeatherS2 pinout (click to enlarge)
 |
Links#