Arduino Category | ESP-32 | Pi Pico | Micropython - 叩頂窩客

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Arduino•ESP32•智慧家居

如何使用 ESP32 做類比輸出 DAC？做個 80 年代的指針溫濕度表吧！

<img width="1000" height="667" src="data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%201000%20667'%3E%3C/svg%3E" data-src="https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?resize=1000%2C667&ssl=1" class="attachment-lavander-postBlock size-lavander-postBlock wp-post-image lazy" alt="如何使用 ESP32 做類比輸出？做個 80 年代的指針溫濕度表吧！" decoding="async" data-srcset="https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?w=1000&ssl=1 1000w, https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?resize=300%2C200&ssl=1 300w, https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?resize=768%2C512&ssl=1 768w, https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?resize=600%2C400&ssl=1 600w, https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?resize=120%2C80&ssl=1 120w, https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?resize=255%2C170&ssl=1 255w, https://i0.wp.com/koding.work/wp-content/uploads/2021/10/use-esp32-to-output-analog-signal-cover.jpg?resize=345%2C230&ssl=1 345w" data-sizes="(max-width: 1000px) 100vw, 1000px" />

如何使用 ESP32 做類比輸出？做個 80 年代的指針溫濕度表吧！

2021-10-02 by J No Comments

ESP32 相對於 Raspberry Pi 來說，最大的差異點之一是擁有類比輸出輸入（DAC, ADC）！可以讓我們把現實生活中的訊號（類比）與電路世界的訊號（數位）做一個橋樑。就讓我們為如何用 ESP32 快速做溫溼度監測？使用 DHT sensor 來達成智慧家居！中一起做的溫濕度偵測器增加一個 80 年代的指針輸出吧！

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Arduino•ESP32•智慧家居

如何用 ESP32 快速做溫溼度監測？使用 DHT sensor 來達成智慧家居！

<img width="798" height="531" src="data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20798%20531'%3E%3C/svg%3E" data-src="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?resize=798%2C531&ssl=1" class="attachment-lavander-postBlock size-lavander-postBlock wp-post-image lazy" alt="如何用 ESP32 快速做溫溼度監測？使用 DHT sensor 來達成智慧家居！" decoding="async" data-srcset="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?w=798&ssl=1 798w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?resize=300%2C200&ssl=1 300w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?resize=768%2C511&ssl=1 768w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?resize=600%2C399&ssl=1 600w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?resize=120%2C80&ssl=1 120w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?resize=255%2C170&ssl=1 255w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-esp-32-and-dht-sensor-to-detect-temp-and-humidity-cover.jpeg?resize=345%2C230&ssl=1 345w" data-sizes="(max-width: 798px) 100vw, 798px" />

如何用 ESP32 快速做溫溼度監測？使用 DHT sensor 來達成智慧家居！

2021-09-29 by J No Comments

想要自動化監控目前的氣溫和濕度嗎？就讓我們使用 ESP32 和 DHT sensor 系列來自製一個溫濕度監測計吧！

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AI 神經網路自走車•Arduino•Python•Raspberry Pi Pico

如何用 Raspberry pi pico 做 I2C Slave？使用 MicroPython 與 Raspberry pi

<img width="1000" height="667" src="data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%201000%20667'%3E%3C/svg%3E" data-src="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?resize=1000%2C667&ssl=1" class="attachment-lavander-postBlock size-lavander-postBlock wp-post-image lazy" alt="如何用 Raspberry pi pico 做 I2C Slave？使用 MicroPython 與 Raspberry pi" decoding="async" data-srcset="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?w=1000&ssl=1 1000w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?resize=300%2C200&ssl=1 300w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?resize=768%2C512&ssl=1 768w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?resize=600%2C400&ssl=1 600w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?resize=120%2C80&ssl=1 120w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?resize=255%2C170&ssl=1 255w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/let-raspberry-pi-pico-to-be-i2c-slave-cover.jpg?resize=345%2C230&ssl=1 345w" data-sizes="(max-width: 1000px) 100vw, 1000px" />

如何用 Raspberry pi pico 做 I2C Slave？使用 MicroPython 與 Raspberry pi

2021-09-26 by J No Comments

MicroPython 標準函式庫裡提供的 I2C 模組，只能讓 Raspberry pi pico (RP2040) 做 I2C Master，如果今天要讓 pico 做 Slave 只能改用 C++ 函式庫。真的是這樣嗎？

本文是 AI 神經網路自走車第三篇，分享如何用 MicroPython 來實現 I2C Slave，並且與 Raspberry pi 做溝通，就讓我們一起學習吧！

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AI 神經網路自走車•Arduino•Python•Raspberry Pi Pico

用 Raspberry pi pico 與 HC-SR04 做超音波距離測量

<img width="1000" height="667" src="data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%201000%20667'%3E%3C/svg%3E" data-src="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?resize=1000%2C667&ssl=1" class="attachment-lavander-postBlock size-lavander-postBlock wp-post-image lazy" alt="" decoding="async" data-srcset="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?w=1000&ssl=1 1000w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?resize=300%2C200&ssl=1 300w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?resize=768%2C512&ssl=1 768w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?resize=600%2C400&ssl=1 600w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?resize=120%2C80&ssl=1 120w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?resize=255%2C170&ssl=1 255w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-hc-sr04-to-detect-distance-cover.jpg?resize=345%2C230&ssl=1 345w" data-sizes="(max-width: 1000px) 100vw, 1000px" />

2021-09-21 by J No Comments

本文是 AI 神經網路自走車第二篇，分享如何使用 Raspberry pi pico (RP2040) 與 HC-SR04 超音波測距模組做底層的距離偵測。雖然最終會使用 camera 與 CNN 做 auto driving 的大腦，但加上距離資訊會更準確，就讓我們一起來學習吧！

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AI 神經網路自走車•Arduino•Python•Raspberry Pi Pico

用 Raspberry pi pico 做 PWM Motor Control

<img width="1000" height="668" src="data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%201000%20668'%3E%3C/svg%3E" data-src="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?resize=1000%2C668&ssl=1" class="attachment-lavander-postBlock size-lavander-postBlock wp-post-image lazy" alt="用 Raspberry pi pico 做 PWM Motor Control" decoding="async" data-srcset="https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?w=1000&ssl=1 1000w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?resize=300%2C200&ssl=1 300w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?resize=768%2C513&ssl=1 768w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?resize=600%2C401&ssl=1 600w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?resize=120%2C80&ssl=1 120w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?resize=255%2C170&ssl=1 255w, https://i0.wp.com/koding.work/wp-content/uploads/2021/09/use-raspberry-pi-pico-to-do-pwm-motor-control-cover.jpg?resize=345%2C230&ssl=1 345w" data-sizes="(max-width: 1000px) 100vw, 1000px" />

用 Raspberry pi pico 做 PWM Motor Control

2021-09-19 by J No Comments

本文是 AI 神經網路自走車第一篇，分享如何使用 Raspberry pi pico (RP2040) 做底層的馬達控制。透過 PWM 來控制馬達轉速，並使用 MicroPython 來撰寫韌體，就讓我們一起學習吧！

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About me

<img class="lazy" src="data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%201%201'%3E%3C/svg%3E" data-src="/wp-content/uploads/2020/09/avatar_j-e1599628921987.jpg" alt="author j"/>

J

雖然大學唸的是生物，但持著興趣與熱情自學，畢業後轉戰硬體工程師，與宅宅工程師們一起過著沒日沒夜的生活。之後憑著一股傻勁與朋友創業，再度轉戰軟體工程師，一手扛起前後端、雙平台 app 開發，過程中雖跌跌撞撞，卻也累計不少經驗。

可惜不是那 1% 的成功人士，於是加入其他成功人士的新創公司，專職開發後端。沒想到卻在採前人坑的過程中，拓寬了眼界，得到了深層的領悟。...more