Embedded Systems at AEA

Embedded Systems (updated 01-2025)

In the Alternative Energy Area - UNPA, we have historically worked on the development of embedded systems, focused primarily on the measurements required in renewable energy equipment. The development work has included various types of systems: from the 8051 family (C2 - 1995), PC/104 (1999-2003), AVR and Cypress PSoC (from 2004 to today), TSLinux (2008-2012), ARM-Cortex M4 (2017 to today), and covers in some cases local development boards and in most cases the integration of commercial boards. In systems developed in cooperation with UMAG (Chile) and UTN-FRRo (Rosario), commercial dataloggers such as the Campbell Scientific CR850, the CR1000 and CR1000X have been integrated, and access via TLS to a remote server was implemented using Raspberry Pi4B boards.

Cooperation with CERE/UMAG (Universidad de Magallanes) on the subject of Campbell Scientific Dataloggers dates back to 2012 and has continued in various projects as described in:

https://github.com/rafoliva/CERE-DataAcq

Based on this experience, the developments of AEA (CR1000 acquired in 2013 via the PICTO-CIN Project) and those developed jointly with OES-UTN (FRRo) since 2019 are reflected in:
https://github.com/rafaeloliva/AEA-DataAcq

Recently added were experiences with the ESP family of Espressif, regarding the Web link of traditional embedded systems, best practices for their coding and extensions using NodeRed under RBPi4B.

Presentations at UNPA UARG Computer Science Conferences

2024:The XXI UNPA/UARG Computer Science Conference was held between 11 and 13/11/2024 at the UARG headquarters. AEA held a presentation on November 12 from 11 a.m. to 1 p.m. on the topic "Applications of ESP32 embedded systems and implementation of a pH measurement module based on NodeMCU", by Mg. Ing. Rafael Oliva, and Ing. Esp. Nestor Cortez from our Alternative Energy Area.

Part 1 (R. Oliva)

• Web interface on the Internet – basic concepts and layer model

• Family History ESP

• Using ESP8266 and ESP32

• Embedded systems – background

• Possible connection configurations for ESP-Embedded System

• Demonstration case – Connection to SISMED/SJ24 with ESP module and Raspberry Pi4B

• Other models and practical cases

Part Two (N. Cortez)

• ESP32 connection - Edu CIAA Embedded System – PLC poncho

• Web Interface - ESP modules (Application)

• ESP32 connection – ambient temperature and humidity sensor

DHT22 – Web interface – Data acquisition module

• Notebook connection - ESP32 - Educational module

• Acquisition of soil temperature and humidity data

• ESP32 PH4502 Module - pH Meter

Photo Gallery / Jornadas de Informática 2024:

Download 2024 Presentations in PDF–Part 1-Part 2

2023:The XX UNPA/UARG Computer Science Conference was held between 10/25 and 26/2023 at the UARG headquarters. AEA held a presentation on 10/26 from 9 to 11 am on the topic “Web interface for embedded systems CL2, EDU CIAA and PC using ESP32 technology. Applications in teaching.”, by Mg. Ing. Rafael Oliva, and Ing. Esp. Nestor Cortez from our Alternative Energies Area.

Download 2023 Presentations in PDF–Part 1-Part 2

2022: On November 3 and 4, 2022, the 19th UNPA/UARG Computer Science Conference was held at the UA Río Gallegos Campus. AEA held a presentation on November 4 from 10 a.m. to 12 p.m. on the topic "Advances in web interfaces for embedded systems using ESP technology", by Mg. Ing. Rafael Oliva, and Ing. Esp. Nestor Cortez from our Alternative Energies Area.

Download PDF Presentations 2022–Part 1-Part 2

2021: On 10/29/2021, a virtual presentation was made at the "XVIII Jornadas de Informática UNPA/UARG" on the subject "Web interface for CL2, EDU-CIAA and PIC embedded systems using ESP technologies", by Mg. Eng. Rafael Oliva, Eng. Esp. Nestor Cortez of our Alternative Energies Area.

The contents treated were:

(Part 1)

• Web interface on the Internet – basic concepts and layer model

• Use of ESP modules
• Embedded systems – background
• Possible connection configurations ESP-Embedded System
• The Argentine Open Industrial Computer (CIAA) - Introduction
• CL2, CL3 and PIC boards used
• Communications introduction – UARG system with Raspberry Pi4B and conventional Datalogger

(2nd part)

• Comparison with PLC / Ladder, common drives
• The connection of CIAA and EDU.CIAA with the outside world
• Adaptation of Drivers in C for specific examples
• Electric motor drive EDU – CIAA + Alphanumeric display
• Prototype for the use of a poncho to drive an electric motor in rotation inversion.
• Prototype demonstration of XY positioning module
• Applications with Microchip microcontrollers
• Web interface - ESP modules
• ESP Connection - Embedded System

XVIII CONFERENCE ON INFORMATICS 2021 – UNPA / UARG - October 29, 2021

Recording of the presentation JI2021 - Ing N.Cortez / Ing. R.Oliva

Download PDF Presentations - 1st Part - 2nd Part