Two cards of ESP32 based (Crowdfunding) Hornbill development [Exclusive Guide]
Explore Embedded, the manufacturer located in Bangalore, Indian launches a new range of ESP32-based development map Hornbill ESP32 Dev and Minima . Explore Embedded offers this new card of the module ESP-WROOM-32-based development of Espressif in the form of a participatory fundraising on the Crowd Supply platform ( project page). There are already very many map of development but Hornbill cards arrive with very good arguments against the competition.
this first card solves the main shortcoming of the current ESP32 cards, a too large width that makes use on breadboard almost impossible. This map is more narrow. It is close to the Arduino Nano V3 in terms of dimensions. The map is constructed around the usual ESP-WROOM-32 module. For the record, here are its main features:
- Module WROOM32 ESP certified FCC, IC, MIC (Telec), KCC and NCC
- dual-core microprocessor 32-bit @ 240 MHz
- connectivity: Wi – Fi: 802.11b/g/n/e/i and Bluetooth (v4.2) BR/BDU/wheat
- Bus: 4 × SPI, 2 × 2 × 3 × UART, CAN 2.0, I²C, I²S
- Cryptography: AES , SHA-2, RSA, ECC, random number generator (RNG)
- 2 x connector 19 pin: GPIOs, I2C, UART, SPI, ADC, DAC, tactile interface (touch interface), VN/VP, 5V, 3.3V and GND
- via the micro USB connector 5V power supply. Connector for external LiPo battery with built-in charger
- 1 x port micro USB for programming and debugging. Converter USB – to – serial CP21XX
here is the locating pins
it is accompanied by a map of prototyping, the ESP32 Proto Hornbill. The prototype is equipped with a micro SD card reader, a RGB Led, a sensor of temperature and humidity SHT31 (equivalent of the s.h.i.e.l.d. SHT30 Wemos presented this article in ). The proto for also 6 slots for IR transmitter and 1 slot for an IR receiver. It is possible to directly solder the Dev on the Proto for more compactness.
Minima is also built around the ESP-WROOM-ESP32 module but its design recall the first cards LilyPad and LilyTiny ( presented in this article ). The connectors are at the periphery as well as the connector for LiPo battery. It is intended for clothing applications (wearables). It is not equipped port micro USB for programming. It will go in through a cable FTDI (which is much less convenient, too bad). The diameter is not indicated, but by the size of the ESP32 module, it should be around 35 mm. The connector is located on the top of the map (right on the photo). The minimum offers 15 wide connectors compatible with pliers (for development) crocodiles. The central hole allows circuits using driver sewing thread. 13, 25, 26, 34, 35, 3V3, GND, 23, 22, 21, 19, 18, 4, 2 and 15 are available.
the project is already financed, a minimum of $ 2000 was exceeded with over $ 5500 of cards ordered. The first cards will be delivered from June 5. The Hornbill ESP 32 and Minima are proposed at $ 12 and the Proto $ 15. A waterproof certified IP67 (waterproof case to the dust and water spray) is available for $ 15. The Essentials ($39) kit for the waterproof case, the Dev and the Proto. Other kits are available. Maker ($59), Hornbill OUR (Open Universal Remote) that allows to develop a universal remote (application delivered) at $ 39, Industrial Data Logger ($ 59 or $ 269 for 5 kits). Finally the Light kit ($79) that allows to create light atmosphere by using Led lighting. The project source code is available on GitHub here .