The kit comes in various small bags with some components inserted in polystyrene foam. My kit was missing a resistor - you need to check carefully that all parts are there.There are NO instructions to assist with assembly, nor for operation. You will need to look elsewhere than Bangood to find details! A good and instructive video is at https://www.youtube.com/watch?v=ihXQ4UmKjWY This also contains links to circit diagram; microprocessor code and theory of operation (although be aware that the code comments are NOT in English and as such are unreadable). The biggest problem is that the display (daughter) board spacers supplied with the kit are far too small. A 470uF capacitor sits under this board - and it is bigger than the spacers. I solved this problem by using 25mm spacers and two 8 pin header connectors to sit the display far higher (see pics). I use a 12v power pack - this seems adequate. Operation is not obvious - eg if Lx button is down on power up, no display! But it does appear to work well and is quite good value.

The kit comes in various small bags with some components inserted in polystyrene foam. My kit was missing a resistor - you need to check carefully that all parts are there.There are NO instructions to assist with assembly, nor for operation. You will need to look elsewhere than Bangood to find details! A good and instructive video is at https://www.youtube.com/watch?v=ihXQ4UmKjWY This also contains links to circit diagram; microprocessor code and theory of operation (although be aware that the code comments are NOT in English and as such are unreadable). The biggest problem is that the display (daughter) board spacers supplied with the kit are far too small. A 470uF capacitor sits under this board - and it is bigger than the spacers. I solved this problem by using 25mm spacers and two 8 pin header connectors to sit the display far higher (see pics). I use a 12v power pack - this seems adequate. Operation is not obvious - eg if Lx button is down on power up, no display! But it does appear to work well and is quite good value.

The kit comes in various small bags with some components inserted in polystyrene foam. My kit was missing a resistor - you need to check carefully that all parts are there.There are NO instructions to assist with assembly, nor for operation. You will need to look elsewhere than Bangood to find details! A good and instructive video is at https://www.youtube.com/watch?v=ihXQ4UmKjWY This also contains links to circit diagram; microprocessor code and theory of operation (although be aware that the code comments are NOT in English and as such are unreadable). The biggest problem is that the display (daughter) board spacers supplied with the kit are far too small. A 470uF capacitor sits under this board - and it is bigger than the spacers. I solved this problem by using 25mm spacers and two 8 pin header connectors to sit the display far higher (see pics). I use a 12v power pack - this seems adequate. Operation is not obvious - eg if Lx button is down on power up, no display! But it does appear to work well and is quite good value.

Very good kit with all the bits there, the two capacitors being too tall are a small problem but i put mine behind the board which is fine if its going into a box. The chip came pre-programmed so took all the hassle out of it . Two of these have been lost in the post so the third one was with insurance and tracked and arrived ok. somewhere in the world are two lost kits :) Not sure what the pot is for between the switches ?? but the one at the back is for the display contrast (it can be a bit critical) On the whole a very nice kit Merv

Very good kit with all the bits there, the two capacitors being too tall are a small problem but i put mine behind the board which is fine if its going into a box. The chip came pre-programmed so took all the hassle out of it . Two of these have been lost in the post so the third one was with insurance and tracked and arrived ok. somewhere in the world are two lost kits :) Not sure what the pot is for between the switches ?? but the one at the back is for the display contrast (it can be a bit critical) On the whole a very nice kit Merv

Very good kit with all the bits there, the two capacitors being too tall are a small problem but i put mine behind the board which is fine if its going into a box. The chip came pre-programmed so took all the hassle out of it . Two of these have been lost in the post so the third one was with insurance and tracked and arrived ok. somewhere in the world are two lost kits :) Not sure what the pot is for between the switches ?? but the one at the back is for the display contrast (it can be a bit critical) On the whole a very nice kit Merv