I'm loving this shed remote control series

Put a little piece of silicone tubing on your solder sucker tip and it will allow you to get tip right against the soldering iron/joint

Julian, I have faced the same "toggle/momentary" dilemma (may be too strong a word!) as you do. I decided to keep the hardware switch in momentary mode, and perform the latch function in a couple of lines of code instead. Advantages: you can set the start condition of the switch during a software reboot. You can override the value by program if you need to (for example temp over-range forces fan on, regardless of switch state), or you might choose to "lockout" the button's function during certain program phases or times, you can implement dual functions by a short-press, or long-press. I notice a lot of the so-called toggle switches in my car work this way, too.

The trick with solder sucking a plated through hole is to hold the board vertically and place the sucker on one side and the iron on the other. That way you can keep the heat on and get a better seal with the tip of the sucker.

I have some red TTP223 boards, they're about the size of a finger nail, and they _do_ each have pads to solder-select hi/lo & toggle.

i hate solder suckers like that, prefer to use desoldering wick

Weird design for that button. If it's "touch" button it should be totally flat and all components and connector should be at the bottom...

Wouldn't an ESP32 with an "external' antenna be a better idea? You'd get the extra bit of range you need *and* built-in touch switches.

Why not use a simple SPST switch instead? Is it for fun or because you don't want to bother with debouncing? Or because a 5p switch doesn't make an interesting video? ;) (SPST or any other more suitable type of switch)

@Julian Ilett I’m curious if the Active Low / Active High pin setting also determines the power-on state? eg. If the initial power-on state is Off (seems logical to assume), then you’d also assume this pin might control if the output is initially high or low after power-on initialisation. In which case this pin would still be relevant even with Toggle mode selected. ie. On power-up do you want the fan to default to On or Off?

They will both actually be Trancievers then ;-)

I remember around 1977 my parents rented this cutting-edge Mitsubishi TV - Didn't have a remote control they weren't about yet unless you were rich, but the channel change buttons were touch sensitive non tactile little chrome strips which was quite a novelty at the time, just touching them to turn the telly over. I guess this is similar technology using capacitance?

Amazing what you can do when you solder suck from under the board. Visualizing what is happening and whether you actually right on the hole from underneath is a little tricky though. I've recently picked up a Anesty ZD915 but haven't used it yet, barely have time to use my vacuum cleaner lately lol

i purchased some of these from aliexpress a few years ago and just now found a practical use them... just to test them i connected one to a USB cable on my computer, with a male/female connector, then just wired red to vcc and black to grnd.... get a red light, not green like every site says i should get...and the light doesn't change when i touch it - long touch, short touch, back front, nothing... so figured it was a bum one... got another one... same thing... got ANOTHER one - same thing. so clearly i'm doing something wrong... just to test to see if they even recognize a touch, not even wiring a circuit or anything... am i just stupid or something? what's the deal? any idea?

@Julian Ilett If the receiver sends an acknowledgement packet, does the sender send receipt of that acknowledgement? and the receiver receipt of that receipt of acknowledgement? :P

Nice video can I use this fr a drum machine project?

Julian, you could write a machine learning algorithm (well, probably an ANN) to optimize the humidity at which the fan should turn on and the length of time the fan should run. :-)

If I designed this board, there would be a jumper on the touch sensor board to set the toggle mode. I know that the board featured in the video board does NOT have a jumper to set the toggle mode. Soldering those 2 pins on the chip together might have been hard.

I'm waiting for the headline 'youtuber arrested for high tech cannabis grow' ha ha.

goooooooooood morning Juliet

Is there any way to toggle ttp223b green led ?

Can we use this to 5 mm glass

Why would you send a *continuous* stream of "ons/offs" via the transmitter when you could program to just look for a coded "on/off" signal at the other end and switch/toggle as needed (saving power at the transmitter side)?

You should have the unit in the shed report back the battery level once or twice a day. I know you're planning on putting a big battery out there but it's going to get low at some point

If you need any 1 way 2 way 4 way or 8 way relay boards let me know I'll post you some out I have tons I also have other bits like ultrasonic sensors and temp sensors

May you show me how to connect one of these please and thank you, message me back

Meant to ask on a previous vid, what's the capacitor doing on the transmitter board?

I'm quite sure your RF distance issue could be overcome using a small Yaggi type antenna. Maybe even a Bow Tie type.

I'm still struggling to understand the human involvement here. Why not fully automate this so when a humidity level is reached the fan turns on automatically? You wont always be at your desk, or awake... fun though.

Pins coming out the bottom!!! Painful...

Never understood why they solder them pins in when must time you need straight pins.

Hey juliann.. love from india

Comment #31, Well done.

Hello Julian