.1/150 DIY Micro RC Truck & Trailerdiorama1112022-10-27 | I modified TOMYTEC 1/150 scale "The Trailer Collection" into a radio control car. The motors are LA4-466FB for both steering and running. Wireless communication is done with two RN4871U (Bluetooth module). RN4871U must be set up for communication before assembly. Wireless communication from trailer head to trailer is infrared remote control. The transmitter is built on the breadboard. The microcontroller used is ATmega88V for the transmitter, ATtiny3217 for the trailer head, and ATtiny412 for the trailer. The power supply for charging the trailer head is DC 5V. I omitted the trailer charging circuit. The grid of the cutting mat in the video is 5cm square.
[Q] Can I sell your artwork? [A] I often remove small parts from my creations to reuse in future pieces, so most of what I make no longer functions properly and therefore cannot be sold.
[Q] Won't exposed copper wire short circuit? [A] The wire being used is enamel wire (magnet wire) coated with insulation material on the surface, so it doesn't short circuit.
[Q] Where did you buy the parts? [A] I often buy electronic components from the online stores of "Akizuki Denshi" or "Marutsu". Additionally, I disassembled a large quantity of junk digital cameras that I acquired from Yahoo Auctions and picked up stepping motors, gears, shafts, photosensors, ultra-small switches, and other components.
[Q] It looks like there are no marking-off line, but are you processing everything by eye? [A] It's hardly visible on the camera, but I mark them with a needle or cutter.
[Q] Why don't you make printed circuit boards? [A] Since I'm not mass producing, it's quicker to use universal boards. Also, to make it smaller, I sometimes have to modify the pins of SOT or SOP packages and solder them, which is difficult to do with a printed circuit board. Also, it's common to change electronic components after testing, so a universal board is easier to work with.
[Q] It's difficult to solder chip components even with a loupe, but you do it well. [A] I solder with a microscope.
[Q] I was disappointed because I thought even the power windows and wipers would work. [A] Please give me a break...
[Q] How long did it take to create it? [A] It took several months.
[Q] Can you tell me the cost of materials? [A] Since I use a lot of parts and junk parts that I already had, there are many items for which I do not know the price.
[Q] Please make a drone. [A] I do not have the knowledge to make a drone, so I cannot make one. Even if I could make one, I cannot think of any differentiation from those who are currently making drones.
[Q] Please make your micro RC car drift. [A] As the car gets smaller, it's already a challenge just to make it run normally, so there's no room to make it drift.
[Q] Please make the model run faster. [A] It is difficult to make a small model run slowly, so I intentionally run it slowly. Also, I do not make it run faster because it would look too toy-like and lose realism. Additionally, if the model is driven by a stepping motor, it cannot run faster.
[Q] Please modify a Hot Wheels. [A] Since many other people are already modifying Hot Wheels, I currently have no plans to do so.
[Q] What is the development environment for microcontrollers? [A] I write programs in C-language using Microchip Studio 7.0 and run them on AVR microcontrollers.
.DB20 動力化 MOD Motorizeddiorama1112022-04-22 | 線路には常にDC7Vの電圧をかけておいて、操作はリモコン(OE13KIR)で行います。 灯火類は進行方向に合わせて自動で切り替わります。 灯火類と室内灯は任意のところで消灯させることができます。 最高速度はスケールスピードで70km/h程度です。
The rail is always kept at 7V DC and operated by a remote control (OE13KIR). Lights are automatically switched in accordance with the direction of travel. Lights and Coach lighting can be turned off at any point. The maximum speed is about 70km/h at scale speed.
.1/87 Smart DIY micro RC cardiorama1112022-01-19 | I have converted the 1/87 scale BUSCH Smart Fortwo into the radio controlled model. The steering is operated by 3.9mm diameter stepper motor and the drive by 4.1mm diameter DC motor. Wireless communication is performed by two Bluetooth modules(RN4871U). The RN4871U must be configured for communication before assembly. The transmitter is built on the breadboard. The microcontroller used is ATtiny3217 on the transmitter and ATtiny1616 on the receiver(the car side). When the car decelerates from a running state, the brake lights light up automatically. Headlights and turn signals are operated manually. When the voltage of the Li-Po battery becomes 3.4V or less, the turn signals stay on instead of blinking. The power supply for charging is DC 5V. Even if Bluetooth communication is interrupted, it will be automatically reconnected. The grid of the cutting mat in the video is 5cm square.
【Music】 Wolf Moon - Unicorn Heads Press Fuse - French Fuse Tropic Fuse - French Fuse Fast and Run - Nico Staf
.【ダイソー】Bluetoothスピーカー 自作ミュート回路 Muting Circuit for Bluetooth Speakerdiorama1112021-07-03 | 電源を入れた後、約8秒間ミュートになる回路を作りました。 使ったICはタイマーICのNE555Nです。 150kΩの抵抗と47μFのコンデンサの容量でミュートになる時間が決まります。 パワーアンプの8002の1番ピンから伸びているパターンの一部をカットします。 電源が入っているときにМ型のボタンを押したり、SDカードを抜いてBluetoothを接続した場合は声が流れます。
I made the circuit that mutes the device for about 8 seconds after turning it on. The IC is the timer NE555N. The mute time is determined by the value of the 150kΩ resistor and the 47μF capacitor. Cut a part of the pattern extending from 1-pin of the audio power amplifier 8002. When the power is on and you press the М type button or remove the TF Card and connect Bluetooth, the voice will be played.
I made a Bluetooth sound system by incorporating wireless earphone sold in cheap store into a model train. The model train is 1/150 scale KATO E233 series. The speaker is an elliptical type, 23x16x4.6mm in size. The power amplifier is PAM8302A. For the power switch, I used a small push switch that I removed from a broken digital camera. DC 5V is connected for charging. The Micro USB connector has been removed.
The pairing with a computer, press and hold the power switch, and "BTMEL" will appear on the screen. Press pairing on the screen, turn off the train and turn it back on, and you will hear "Connected" and the blue and red LEDs will stop blinking. It seems to be difficult to pair if there is a wireless router nearby. In this case, you can connect it by disconnecting it from the router only when you want to pair it, or by disconnecting the Wi-Fi connection on the computer side.
This Bluetooth module goes into power save mode if silence continues for more than a second, and when it plays a sound, it is slow to come back and the sound source is cut off at the beginning. Since I don't know how to modify it to avoid this, I play at low volume all the time the following video on Youtube that plays 20Hz sine wave to prevent it from going into power save mode.
I built a motor into the Kumoru145 from Tomix "Railway Collection" and powered it. The power bogies are KATO DT21, and the pantographs are Tomix PS16P. Always apply a voltage of 5V DC to the rail. The transmitter controls Kumoru145 via Bluetooth, and Kumoru145 controls Kuru144 via infrared signal. RN4020 needs to be configured for central and peripheral settings before assembly. Headlight, Taillight and Coach Lighting can be turned on and off with the tactile switches. The blue tactile switches operates the pantographs. When you change direction with the toggle switch while driving, the speed will gradually decrease and stop, then accelerate in the opposite direction. The red tactile switch is emergency stop. To resume operation, return the volume to 0.
.【Mustang】LED and DFPlayer Installation【1:43 scale】diorama1112020-11-25 | I built LED and DFPlayer Mini into 1/43 scale Ford Mustang. By installing DFPlayer Mini, the sound of engine start and the sound of turn signal sound. Rear turn signal is sequential type with five SMD LEDs lined up. There are five types of turn signal sound. The operation is performed with the infrared remote control(P3-IR21SIL). The main microcontroller is ATmega88V, but I used ATtiny10 only for the map light because there were not enough pins. The voltage of the cable that charges the battery is DC5V. For sound effects, make a folder named "01" on the TF Card, and put the 11 mp3 files contained in the zip file from the [Sound Effect] below into this folder. Do not put regular music files in this folder named "01".
Mr.YOMIX made the rollsign of a model railroad using a small LCD, so I made it too. My model is HO scale 485 series, and the display is 0.6 inch OLED. The OLED can display 64x64 pixels, but the part visible from the hole in the model is only 40x40 pixels (about 6.5x6.5mm). The operation is performed using the remote control that came with the inexpensive MP3 player. Each rollsign is assigned to the buttons 1 to 9 on the remote controller(3 types from 1 to 3 LED sign), the rollsign and LED type can be switched with the Mode button, and the brightness can be adjusted with the volume button. The communication method between the microcontroller and OLED is SPI. 40x40 pixels BMP image was converted to RGB233 (8bit 256 colors of red 2bit, green 3bit and blue 3bit) using GIMP and self-made program, and converted into an H file to match the microcontroller. Since these image data cannot be stored in the SRAM of the microcontroller, they are stored in the program memory. Therefore, it is necessary to put all H files in the same folder as the main.c file of the program and build it.
* The value of the inductor (coil) in the circuit diagram shown in the video is incorrect. The correct value is 10μH. The circuit diagram of the link below has been corrected. I'm sorry.
.【MP3】DFPlayer Mini with ATtiny13A【DIY】diorama1112020-07-27 | By connecting a microcontroller to DFPlayer Mini, even if the power is turned off, the volume setting and the song data you were listening to will be recorded in the EEPROM of the microcontroller. When you turn on the power, the beginning of the song you were listening to will be played.
.【DIY】How to make 1:150 micro RC Cardiorama1112020-06-25 | TOMYTECのTHEカーコレクション 1/150 トヨタ クラウンをリモコンで動くように改造しました。 自作の赤外線リモコンで操作します。 リモコンのフォーマットは独自規格のものです。 車両に搭載した電池はリチウムポリマーバッテリー(3.7V 40mAh)です。 モーターは2つとも振動モーターの重りを外して使いました。 車両側に使用したマイコン(ATtiny1616)にプログラムを書き込むにはATMEL STUDIO 7以降で、UPDIが使える機器が必要です。 私はMPLAB PICkit 4を使いました。AVRISP mkⅡは使えません。
I modified the TOMYTEC "THE Car Collection" 1/150 TOYOTA CROWN to work with a remote control. The car is controlled by a self-made infrared remote control. The remote control format is proprietary. The battery installed in the car is a lithium polymer battery(3.7V 40mAh). I used motors by removing weights of the vibration motors. In order to write the program of the microcontroller(ATtiny1616) used on the car, you need ATMEL STUDIO 7 or later and a device that can use UPDI. I use MPLAB PICkit 4. AVRISP mkII cannot be used.
.【DIY】How to make Angel Eyes for a Model Car, Angel Far Yapimi [Tutorial]diorama1112020-01-10 | DIY Angel Eyes youtu.be/rbdJnMkaSoQ
.【DIY】Infrared Remote Control Using ATtiny13Adiorama1112020-01-04 | I made a simple remote control transmitter and receiver using ATtiny13A. The PB1 and PB2 pins of the microcontroller are in momentary operation, and the PB3 and PB4 pins are in alternate operation. The communication protocol of the remote control is original. The case is TAKACHI PS-65. No transmitter power switch is required.
.【MP3】DIY Electronic Music Box with DFPlayer Mini【Orgal】diorama1112019-12-11 | How to make a music box
I made an electronic music box. The material of the box and the speaker enclosure are MDF. ATtiny13A (microcontroller) controls DFPlayer Mini. Each time you open the lid, the next song is played. The green tactile push button switches are for adjusting the volume.
.How to make miniature touch sensor desk lampdiorama1112019-11-23 | The microcontroller is ATtiniy10. The programmer connection method is TPI(Tiny Programming Interface). 5V is required when writing to ATtiny10. For this reason, it must be written before connecting the LED. The sensitivity of the touch switch is adjusted by the capacitance of the capacitor connected to the Touch Pad. The number of LED can be small.
.How to select resistor for a LED (The worlds easiest tutorial)diorama1112019-06-03 | How to measure LED current (The worlds easiest tutorial) youtu.be/39-4cj11h-Y
tutorial arduino motor control raspberry pi rc car pic electronic steering drift踏切 電車 遮断機 音 改造 プラレール おもちゃ 新幹線 The toy railroad crossing with servo motorsdiorama1112019-05-05 | プラレールの大きな踏切にLEDを取り付けて、遮断機はサーボで動くようにしました。 フォトセンサは4か所に設置しています。 警報音の種類と音量はリモコンで操作します。
.パンタグラフ スパークも上昇もしないけど【改造 プラレール】 電車 おもちゃ The pantograph on the toy traindiorama1112019-04-20 | E231系にシングルアームパンタグラフを載せてみました。 使ったパンタグラフはTOMIX HO-P26 WPS28A形です。
.Sequential Turn Signals for Scale Model Car [DIY] シーケンシャルウインカーdiorama1112019-03-02 | 1個のLEDに流れる電流は10mA以下にしてください。 The current flowing to one LED should be 10mA or less.
This is a simple indicator that the LED turns on when the voltage(0-12V) connected to the Probe terminal falls below the set voltage(0-5V). Since it is set to 2.3V here, when it becomes less than 2.3V, the green LED turns off, the red LED turns on and the yellow LED flashes. At 2.3V or more, the LED from the PB2 pin of the microcontroller turns on, and the LED from the PB3 pin turns off. To change the setting voltage, change the value of "volt" on line 10 of the program. "adjust" on line 11 is a variable for fine adjustment. Do not apply voltage exceeding 5V to VCC pin of microcontroller. In order to reduce power consumption, the microcontroller is always powered down and the voltage is checked every 2 seconds with the watchdog timer. Current consumption is 0.3mA or less (excluding LED current).
.IR Remote Control Decoder (NEC format)diorama1112019-02-02 | The interface of OLED is SPI and the control driver is SSD1306. You can toggle between LSB first and MSB first with the switch. "ERROR" is displayed on remote control other than NEC format. Fuse setting of the microcontroller is unnecessary.
I used ATtiny412 of tiny AVR 1 series. It is an inexpensive 8 pins microcontroller, but since USART is included, anyway I tried a DFPlayer Mini. The Programmer is PICkit4. PICkit4 and ATtiny412 are connected by UPDI. When you use a speaker, please set the power supply voltage at 4V-5V.
停止状態でもNextまたはPreviousを押すとその回数だけ曲を送ることができ、Playで曲が始まります。 Pauseで一時停止中にNextまたはPreviousを押すと次の曲または前の曲が再生を始めます。 Intro Searchは曲の最初の5秒間だけを順番に再生します。 Intro Search中はNextとPreviousは有効で、その曲を全部聞きたい場合はPlayを押します。Pauseは無効です。 マイコンのPC0-PC3,PD2-PD5につなぐ16キーは1~16曲目を直接選曲できます。(この動画内では省略しています) PC4のContinuation or Only One Songは何もつながないと曲を連続で再生し、GNDにつなぐと一曲のみ再生して停止します。
When you use a speaker at DFPlayer Mini, it is more stable to set the voltage at 4V-5V. When using the Audio Output terminal (DAC_L, DAC_R) it is OK at 3.3V-5V.
Even in the stopped state, pressing Next or Previous will send the songs that many times, and the song will start with Play. If you press Next or Previous while paused at Pause, the next song or the previous song will start playing. Intro Search plays back a 5-second segment from the beginning of each song. During Intro Search Next and Previous are valid, and press Play if you want to listen to all the songs. Pause is invalid. The 16 keys that connect to the PC0-PC3 and PD2-PD5 of the microcontroller can directly select the 1st - 16th songs. (It is omitted in this video) PC4 "Continuation or Only One Song" plays songs continuously unless anything is connected, and plays only one song and stops when connected to GND.
The order of the songs is the order recorded on the SD memory card. Please turn the power off and on again when replaced the SD memory card. If the microcontroller does not recognize the exact number of songs, format the SD memory card and record the songs.
.3.3V Breadboard Power Supply with Ni-MH Batterydiorama1112018-12-17 | This is 3.3V power supply for a breadboard. The current can flow Max 200mA. The current flowing about 13μA when the switch turned off . When HT7733A is replaced with HT7750A, the output is 5V.
I installed a small stepper motor inside the KATO N-scale Unitrack turnout and made it move slowly. The case containing the tactile switches and the LED is FRISK one. The switch connected to PD7 pin of the microcontroller switches between "Power Routing" which electricity flows only in the traveling direction of the train and "Non Power Routing" which electricity flows in both regardless of the position of the turnout.
《 2018年10月22日 》 回路図の中でマイコンのPC2とPC3の位置が間違っていましたので訂正しました。 I corrected the positions of PC2 and PC3 of the microcontroller in the circuit diagram.