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Rafael Sousa
26 days ago
Bluetooth Low Energy beacon project. Asset tracking for the workshop! ESP32 devices scan for beacons continuously. Position triangulation from signal strength. Dashboard shows last known location of tools. No more searching for the multimeter. Simple solution to annoying problem! #ble #bluetooth #tracking #esp32
Rafael Sousa
1 month ago
Deep sleep mode on ESP32 = 6 months battery life on a single 18650 cell! Wake on timer for sensor readings. ULP processor handles basic monitoring. Current draw in sleep is 10µA. The math finally works for outdoor deployments. Battery optimization is an art! #powersaving #esp32 #battery #embedded
Rafael Sousa
1 month ago
MQTT + Home Assistant = perfect combo. All my smart devices now work together seamlessly! Created automations for lighting based on presence and time. The dashboard is beautiful and responsive. Local control means it works even when internet is down. True smart home independence! #mqtt #homeassistant #smarthome #automation
Rafael Sousa
3 months ago
STM32 project: High-precision motor controller for my CNC machine. 32-bit MCU power! Running at 168MHz with hardware PWM. Closed-loop control with encoder feedback. Microstepping for smooth motion. The accuracy improvement over Arduino is significant. Industrial-grade DIY! #stm32 #cnc #embedded #motorcontrol
Rafael Sousa
1 month ago
3D printed enclosure for my sensor node. Fusion 360 + PETG = weather-resistant housing! Designed with proper ventilation for accurate readings. Cable glands for waterproofing. Mounting brackets included. From idea to physical object in a day. 3D printing is essential for makers! #3dprinting #enclosure #maker #fusion360
Rafael Sousa
2 months ago
Built a weather station with BME280 + UV sensor. Data logging to InfluxDB! Grafana dashboards show trends over time. Compared to commercial weather stations - accuracy is comparable. Adding rain gauge and wind sensor next. Local weather data is surprisingly useful! #weatherstation #sensors #iot #grafana
Rafael Sousa
3 months ago
Flashed Tasmota on all my smart plugs. Local control without cloud dependency! Power monitoring shows energy usage per device. Scheduled the pool pump for off-peak electricity. No more wondering if China knows when I turn on my lights. Privacy and functionality! #tasmota #smartplug #privacy #iot
Rafael Sousa
26 days ago
Deep sleep mode on ESP32 = 6 months battery life on a single 18650 cell! Wake on timer for sensor readings. ULP processor handles basic monitoring. Current draw in sleep is 10µA. The math finally works for outdoor deployments. Battery optimization is an art! #powersaving #esp32 #battery #embedded
Rafael Sousa
1 month ago
Built a weather station with BME280 + UV sensor. Data logging to InfluxDB! Grafana dashboards show trends over time. Compared to commercial weather stations - accuracy is comparable. Adding rain gauge and wind sensor next. Local weather data is surprisingly useful! #weatherstation #sensors #iot #grafana
Rafael Sousa
2 months ago
Arduino Nano controlling 8 relays for my garden irrigation system. Automated watering based on soil moisture! Capacitive sensors in each bed. Weather API integration prevents watering before rain. Water usage dropped 40%. The tomatoes have never been happier! #arduino #gardening #iot #irrigation
Rafael Sousa
3 months ago
Built a weather station with BME280 + UV sensor. Data logging to InfluxDB! Grafana dashboards show trends over time. Compared to commercial weather stations - accuracy is comparable. Adding rain gauge and wind sensor next. Local weather data is surprisingly useful! #weatherstation #sensors #iot #grafana
Rafael Sousa
3 months ago
Built a CO2 monitor with an SCD40 sensor. Indoor air quality matters! ESP32 displays readings on e-ink screen. Alerts when ventilation needed. Logged data shows correlation with headaches. Working from home upgrade that actually improved productivity. Breathe better, think better! #sensors #airquality #esp32 #wfh
Rafael Sousa
2 months ago
STM32 project: High-precision motor controller for my CNC machine. 32-bit MCU power! Running at 168MHz with hardware PWM. Closed-loop control with encoder feedback. Microstepping for smooth motion. The accuracy improvement over Arduino is significant. Industrial-grade DIY! #stm32 #cnc #embedded #motorcontrol
Rafael Sousa
3 months ago
Deep sleep mode on ESP32 = 6 months battery life on a single 18650 cell! Wake on timer for sensor readings. ULP processor handles basic monitoring. Current draw in sleep is 10µA. The math finally works for outdoor deployments. Battery optimization is an art! #powersaving #esp32 #battery #embedded
Rafael Sousa
2 months ago
Deep sleep mode on ESP32 = 6 months battery life on a single 18650 cell! Wake on timer for sensor readings. ULP processor handles basic monitoring. Current draw in sleep is 10µA. The math finally works for outdoor deployments. Battery optimization is an art! #powersaving #esp32 #battery #embedded
Rafael Sousa
3 months ago
Modbus RTU integration with industrial sensors. ESP32 talks to legacy equipment now! RS485 transceiver for electrical isolation. Reading data from 20-year-old PLCs. Bridging to MQTT for modern dashboards. Old factory equipment meets IoT. Industrial retrofit done right! #modbus #industrial #iot #retrofit
Rafael Sousa
3 months ago
Designed a custom PCB for my IoT sensor node. From breadboard to production in 2 weeks! Used KiCad for schematic and layout. JLCPCB delivered 10 boards for $20. First revision worked perfectly. The satisfaction of holding your own PCB is unmatched. Hardware design is addictive! #pcb #electronics #iot #kicad
Rafael Sousa
3 months ago
MQTT + Home Assistant = perfect combo. All my smart devices now work together seamlessly! Created automations for lighting based on presence and time. The dashboard is beautiful and responsive. Local control means it works even when internet is down. True smart home independence! #mqtt #homeassistant #smarthome #automation
Rafael Sousa
3 months ago
ESPHome makes ESP32 programming so easy. YAML configuration instead of C++! Added a new sensor in 5 minutes. OTA updates from Home Assistant. The integration is seamless. Perfect for non-programmers who want smart devices. Converted 3 friends to the ESPHome way! #esphome #esp32 #homeautomation #yaml
Rafael Sousa
1 month ago
MQTT + Home Assistant = perfect combo. All my smart devices now work together seamlessly! Created automations for lighting based on presence and time. The dashboard is beautiful and responsive. Local control means it works even when internet is down. True smart home independence! #mqtt #homeassistant #smarthome #automation
Rafael Sousa
2 months ago
Flashed Tasmota on all my smart plugs. Local control without cloud dependency! Power monitoring shows energy usage per device. Scheduled the pool pump for off-peak electricity. No more wondering if China knows when I turn on my lights. Privacy and functionality! #tasmota #smartplug #privacy #iot
Rafael Sousa
1 month ago
OTA firmware updates working perfectly. No more USB cables for every change! Implemented dual partition scheme for safe updates. Rollback if new firmware fails to boot. Version tracking in MQTT messages. Deployed updates to 15 devices from my couch. This is how IoT should work! #ota #firmware #esp32 #embedded
Rafael Sousa
29 days ago
OTA firmware updates working perfectly. No more USB cables for every change! Implemented dual partition scheme for safe updates. Rollback if new firmware fails to boot. Version tracking in MQTT messages. Deployed updates to 15 devices from my couch. This is how IoT should work! #ota #firmware #esp32 #embedded
Rafael Sousa
3 months ago
Designed a custom PCB for my IoT sensor node. From breadboard to production in 2 weeks! Used KiCad for schematic and layout. JLCPCB delivered 10 boards for $20. First revision worked perfectly. The satisfaction of holding your own PCB is unmatched. Hardware design is addictive! #pcb #electronics #iot #kicad
Rafael Sousa
3 months ago
Deep sleep mode on ESP32 = 6 months battery life on a single 18650 cell! Wake on timer for sensor readings. ULP processor handles basic monitoring. Current draw in sleep is 10µA. The math finally works for outdoor deployments. Battery optimization is an art! #powersaving #esp32 #battery #embedded
Rafael Sousa
3 months ago
ESP32 project complete! Built a smart thermostat with WiFi control and OTA updates. The dual-core processor handles sensor reading and web server simultaneously. Touch display shows temperature graphs. Saved 20% on heating bills by optimizing schedules. DIY smart home for the win! #esp32 #iot #homeautomation #smartthermostat
Rafael Sousa
2 months ago
MQTT + Home Assistant = perfect combo. All my smart devices now work together seamlessly! Created automations for lighting based on presence and time. The dashboard is beautiful and responsive. Local control means it works even when internet is down. True smart home independence! #mqtt #homeassistant #smarthome #automation
Rafael Sousa
19 days ago
3D printed enclosure for my sensor node. Fusion 360 + PETG = weather-resistant housing! Designed with proper ventilation for accurate readings. Cable glands for waterproofing. Mounting brackets included. From idea to physical object in a day. 3D printing is essential for makers! #3dprinting #enclosure #maker #fusion360
Rafael Sousa
3 months ago
STM32 project: High-precision motor controller for my CNC machine. 32-bit MCU power! Running at 168MHz with hardware PWM. Closed-loop control with encoder feedback. Microstepping for smooth motion. The accuracy improvement over Arduino is significant. Industrial-grade DIY! #stm32 #cnc #embedded #motorcontrol
Rafael Sousa
3 months ago
ESP32 project complete! Built a smart thermostat with WiFi control and OTA updates. The dual-core processor handles sensor reading and web server simultaneously. Touch display shows temperature graphs. Saved 20% on heating bills by optimizing schedules. DIY smart home for the win! #esp32 #iot #homeautomation #smartthermostat