TTP-223 range extender

prusaprinters

<p>My idea of "hidden" touch surfaces on my bed headboard. I had 3 TTP-223 touch sensors with extra wire for extended range. The only "problem" was the tape not sticking well so sensors would sometimes ghost-trip because they would move.</p> <p>After about a year and a half I decided to 3D print new "frames" that would be fixed with double sided tape.</p> <p>Works like a charm + the range is even a bit better than before!</p> <p>Oh, almost forgot to tell what this actually does. It's used for turning on/off lights: ceiling LED, LED strip on my closet and LED strips behind bed's headboard. Just wave and voila. First "wave" turns LEDs to 30%, second wave to 100%, third wave turns them off.</p> <p>I'm planning to change this, if LEDs are on 30% for more than 1 minute, another "wave" will turn them off directly. Board is a simple NodeMCU v2, running ESPHome firmware.</p> <p>This was designed to be used with wire with outside diameter of 0,8 mm. Wire should be just push-fit into the slot. TTP-223 module is fixed to the 3D print with just a drop of hot-snot (hot glue gun :P ). The whole assembly is then mounted to bed headboard with 2 strips of double sided tape.</p> <h3>Print Settings</h3> <p><strong>Printer Brand:</strong></p> <p>Prusa</p> <p class="detail-setting printer"><strong>Printer: </strong> <div><p>I3 MK3S</p></div> <p><strong>Rafts:</strong></p> <p>No</p> <p class="detail-setting supports"><strong>Supports: </strong> <div><p>No</p></div> <p><strong>Resolution:</strong></p> <p>0.10 mm</p> <p class="detail-setting infill"><strong>Infill: </strong> <div><p>15%</p></div> <p><strong>Filament:</strong> kexcelled PETG White Custom Section ==============</p> <p><strong>Code and hardware info</strong></p> <div><p>Here's the code for it:</p> <p>esphome: name: spalnica_postelja platform: ESP8266 board: nodemcuv2</p> <p>wifi: networks:</p> <ul> <li>ssid: !secret primarywifi1</li> </ul> <p>password: !secret primarywifipass</p> <ul> <li>ssid: !secret primarywifi2</li> </ul> <p>password: !secret primarywifi2pass manual_ip: static_ip: !secret ip_spalnica_postelja gateway: !secret gateway subnet: !secret subnet</p> <h3>Enable logging</h3> <p>logger:</p> <p>web_server: port: 80 auth: username: !secret webuser password: !secret webpass</p> <p>api:</p> <p>ota: #safe_mode: True password: !secret otapass</p> <p>switch:</p> <ul> <li>platform: restart</li> </ul> <p>name: "Resetiraj ESP spalnica_postelja"</p> <p>sensor:</p> <ul> <li>platform: wifi_signal</li> </ul> <p>name: "spalnica_postelja WiFi signal" update_interval: 5s id: wifisignalpostelja</p> <ul> <li>platform: uptime</li> </ul> <p>name: "spalnica_postelja uptime" update_interval: 5s id: uptimepostelja</p> <p>binary_sensor:</p> <ul> <li>platform: gpio</li> </ul> <p>pin: GPIO4 name: "Postelja Nejc LED omara" filters:</p> <ul> <li>delayed_off: 10ms</li> <li>platform: gpio</li> </ul> <p>pin: GPIO5 name: "Postelja Nejc LED postelja" filters:</p> <ul> <li>delayed_off: 10ms</li> <li>platform: gpio</li> </ul> <p>pin: GPIO10 name: "Postelja Nejc stropna luc" filters:</p> <ul> <li>delayed_off: 10ms</li> <li>platform: gpio</li> </ul> <p>pin: GPIO12 name: "Postelja 2 LED omara" filters:</p> <ul> <li>delayed_off: 10ms</li> <li>platform: gpio</li> </ul> <p>pin: GPIO13 name: "Postelja 2 stropna luc" filters:</p> <ul> <li>delayed_off: 10ms</li> <li>platform: gpio</li> </ul> <p>pin: GPIO14 name: "Postelja 2 LED postelja" filters:</p> <ul> <li>delayed_off: 10ms</li> </ul> <p>You can see the pinout from the code, there's no schematics to share, it's as simple as it gets. Use the 3,3V from NodeMCU to power all TTP-223 modules (6 in my case), 6x GPIOs and a common GND for everything. I'm powering the system with a 5V phone adapter with a micro USB cable. Works stable for almost 2 years now.</p> <p><strong>NodeMCU module with an added capacitor for TTP-223 stability (between 3V3 and GND lines)</strong></p> <p><strong>This is where you connect the wire for extending range.</strong></p> </div></p></p></p> Category: Electronics