My old breadboard was starting to get a little tired so I thought it was time to update it and to something more useable. The old one was homebrew more or less, but how it was being powered was becoming a nightmare to use.So i grabbed one of these of ebay, and with a breadboard power module i have 12v 5v and 3.3v as well as USB power out. All in all this will be much more usable than the old board.
So what do you do when you do not have the correct sized spade connectors for the job at hand? Hack at some ring connectors with side cutters of course.
The 4th project, while no where near complete is a capacitance touch iambic keyer. Well, its not really a project but a proof of concept, and it kind of works ok and is going to be something that i develop more as i have time. The micro is an ESP32 which has 10 capacitance touch sensors built in. I used a modified version the the morse library that’s available on the net for the timing and keying and connected a peizo buzzer to act as side tone. To key a radio all you have to do is set a digital pin high and pull it low when you want to key the transmitter. And as the code takes care of the timing, you could use this on any transmitter that uses a straight key and pulls to ground on keying. Most of them LOL.
Easter has been quite productive for me, this is project 3 out of 4 is rechargeable battery powered arduino clock with temp and humidity function. Nothing fancy, but highly practical and accurate. The code is a mess, but i have shared it down below, i know someone out there can clean it up and make it more efficient, but for now, its working and doing what it needs so, show the temp and the time.
Hardware is kind of inefficient for this task, arduino mega and 3.2″lcd are both overkill and power hungry. There is an RTC and temp humidity sensor, 18650 battery, boost and charge controller. As usual i did a really crap job at cutting the hole out, I really should have done this in the CNC, I might even make a how to video on how i do that later today.
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//Includes #include <TFT_HX8357.h> #include <DS3231.h> #include <Wire.h> #include "DHT.h" //Defines #define DHTPIN A0 #define DHTTYPE DHT22 //Instances TFT_HX8357 tft = TFT_HX8357(); DHT dht(DHTPIN, DHTTYPE); DS3231 Clock; //Global Variables const long interval = 60000; unsigned long previousMillis = 0; float temp; float humid; bool h12; bool PM; bool Century = false; int DAW; String DayOfWeek; int L_Date; int L_Month; int L_Year; int L_Hour; int L_Minute; String AmPm; void setup() { dht.begin(); Wire.begin(); tft.init(); tft.setRotation(1); tft.fillScreen(TFT_BLACK); } void loop() { unsigned long currentMillis = millis(); //Do stuff here every 60 seconds if (currentMillis - previousMillis >= interval) { previousMillis = currentMillis; tft.fillScreen(TFT_BLACK); tft.setCursor(10, 10, 1); tft.setTextColor(TFT_WHITE); tft.setTextFont(4); tft.setTextSize(1); GetDay(); tft.print(DayOfWeek); tft.print("-: "); GetDate(); if (L_Date < 10) tft.print("0"); tft.print(L_Date); tft.print("-"); if (L_Month < 10) tft.print("0"); tft.print(L_Month); tft.print("-"); tft.println(L_Year); GetTime(); tft.setCursor(30, 100, 7); tft.setTextSize(2); if (L_Hour < 10) tft.print("0"); tft.print(L_Hour); tft.print(":"); if (L_Minute < 10) tft.print("0"); tft.print(L_Minute); tft.setTextFont(6); tft.setTextSize(2); tft.println(AmPm); GetTempHumid(); tft.setCursor(20, 280, 4); tft.setTextSize(1); tft.print("Temp: "); tft.print(temp); tft.print("Deg C"); tft.setCursor(260, 280, 4); tft.print("Humidity: "); tft.print(humid); tft.print("%"); } } void GetTempHumid() { humid = dht.readHumidity(); temp = dht.readTemperature(); return; } void GetTime() { L_Hour = Clock.getHour(h12, PM); L_Minute = Clock.getMinute(); if (h12) { if (PM) { AmPm = "pm"; } else { AmPm = "am"; } } return; } void GetDate() { L_Date = Clock.getDate(); L_Month = Clock.getMonth(Century); L_Year = Clock.getYear(); L_Year += 2000; return; } void GetDay() { DAW = Clock.getDoW(); switch (DAW) { case 0: DayOfWeek = "Sunday"; break; case 1: DayOfWeek = "Monday"; break; case 2: DayOfWeek = "Tuesday"; break; case 3: DayOfWeek = "Wednesday"; break; case 4: DayOfWeek = "Thursday"; break; case 5: DayOfWeek = "Friday"; break; case 6: DayOfWeek = "Saturday"; break; default: DayOfWeek = "ERROR"; break; } return; } |
