Traditional Chinese Electronic Mine Warfare Chess: Circuit Design, Parts List & Workshop Prototype Guide

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Electronic Mine Warfare ChessWith the development of science and technology, toys have entered an era of knowledge, science and fun, and have the function of enlightening and intellectual development for children.The electronic mine warfare chess introduced in this article is a kind of intellectual toy. It is not only informative, scientific and interesting, but also has the advantages of simple circuit, minimal consumption, low cost and convenient production or production. It is suitable for children and children, and is also suitable for various units to use as holiday entertainment programs.1． How the circuit worksThe circuit of the electronic mine warfare chess is shown in Figure 54-1. It is composed of a magnetic switch, a CMOS integrated circuit and a speaker. The circuit has few components and does not require debugging. As long as the components are in good condition and assembled correctly, it can work normally. alt="54-1.jpg (25215 Byte)">In the figure, IC1 is an 8-sound analog integrated circuit, and IC2 is a music integrated circuit. The output ends of IC1 and IC2 directly drive the power amplifier tube BG and the speaker to produce sound through isolation diodes D1 and D2.In the power circuit of IC1, 13 reed switches and 13 toggle switches are connected in parallel. Among them, the reed switches GH1 and K1, GH2 and K2... GH13 and K13 are connected in series. Whether they are turned on at the same time in the series circuit depends on whether IC1 is working or not. If turned on at the same time, IC1 will drive the speaker to make the rumbling sound when the shell explodes.The reed switch GH is placed on the inside of the corresponding camp. When the chess piece (i.e., the small magnet) is placed in the camp, the reed switch will be closed. If the switch K connected in series with the reed switch has been placed in the closed state before (that is, it is equivalent to a mine being buried in this row camp), then IC1 will work, causing the speaker to make a rumbling explosion sound; if the switch in series is not closed in advance, even if the reed switch is closed, IC1 will still not work due to power failure. Therefore, the series switches K1 to K13 are set by the defender in advance. That is, if the defender wants to place the mines in a certain row camp, it can just turn on the series switch of this row camp in advance. K1~K13 are set on the side of the box for the defender, corresponding to the camp number, so that the attacker cannot see the switch number that the defender flips. GII is a separate switch set in the defender's castle. When the attacker drives straight in and puts the chess piece (small magnet) into the defender's castle, the power supply of IC2 is turned on and music sounds immediately emitted to indicate the attacker's victory to celebrate.2. Component selectionIC1 is an 8-sound analog integrated circuit, using KD?562 type integrated circuit block.IC2 integrated circuit, you can choose CW music integrated block such as 9300 or CW8403.D1 and D2 are diodes, choose 2AP type or 1N4001.BG is a triode, choose 3DG6 or 9012, β≥80.GH is a reed switch, which adopts high-sensitive dynamic closing type.K1~K13 are toggle switches, and 13-bit small combined toggle switches can be used.The chess piece is a small magnet, which can be made or replaced by a small magnet from a small internal magnetic speaker or a small magnet from an old earphone. As long as a plastic plate about 2mm thick can be used to attract the reed switch.The power supply is a dry battery, and you can choose 2 AA high-energy batteries to facilitate charging and longer use.Electronic mine warfare chess does not need to make a printed circuit board. You only need to fix IC1, IC2, D1, D2 and BG on the insulating hard board, and then connect the corresponding connections. …

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