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Yesterdays access |
| Page Top | [Lily Diary.】 A diary of life in Mindanao. |
| 26/06/16 | Installing an AS5600 magnetic encoder on a KR-500. |
| 26/06/05 | Grandson Zion's CQ |
| 26/06/04 | Replacing the potentiometer on the KR-500 elevation rotator |
| 26/06/03 | Making a Repeater Controller Pert4 |
| 26/06/01 | Weather Monitor software |
| 26/05/31 | Weather Monitor |
| 26/05/21 | JTDX Auto Run BUGFIX |
| 26/05/17 | Repair of satellite antenna system |
| 26/05/13 | Repair of Alinco DR130 |
| 26/05/07 | Making a Repeater Controller Pert3 |
| 26/05/03 | Indonesian satellite friend YC8RPK |
| 26/04/26 | DXCC200 achieved |
| 26/04/23 | Communication via ISS voice repeater |
| 26/04/20 | WSJT-X Auto Run Ver0.1.5 |
| 26/04/19 | Got an Alinco DR-130 |
| 26/04/15 | Clublog Charts |
| 26/04/10 | Regarding POC transceivers |
| 26/04/08 | Using KENWOOD AT-300 with YAESU radio |
| 26/03/17 | How to establish a radio club in the Philippines |
| 26/03/10 | KENWOOD AT-300 with YAESU radio |
| 26/02/27 | Philippine NTC Amateur Radio License Examination Question Bank |
| 26/02/20 | Package received from JK1SNS |
| 26/02/18 | Temporary License Renewal |
| 26/02/14 | Satellite Tracking Software SatTrack |
| 26/02/05 | Making a Repeater Controller Pert2 |
| 26/02/02 | CQ on satellite IO-86 |
| 26/01/27 | Shack & Repeater Controller |
| 26/01/16 | Making a Repeater Controller |
| 26/01/16 | Making aRotator Interface PCB |
| 26/01/10 | Satellite antenna installation |
| 26/01/08 | WSJT-X Remote Operation |
| 26/01/07 | JTDX Remote Operation |
| 26/01/04 | log_reciver_Ver2.6.6 |
| 26/01/04 | Tailscale VPN software for JTDX_Remote |
| Online Multiple Choice Reviewers to the Phil Amateur Radio Examination by 4F3EW A joint project by JI1FGX/DU9 and DV9JRD |
| Replaced the potentiometer of the KR-500 elevation rotator with an AS5600 magnetic encoder (2026/06/16) | ||||||||||
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| Continuing from June 4th. The potentiometers made in China have thin windings, and the winding is rough in places.  |
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| After consulting with ChatGPT The AS5600 magnetic encoder angle sensor and the ESP32-C3 CPU module can be used as a substitute for a potentiometer. Please refer to the June 4th entry for the previous section.  |
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| I ordered the circuit boards from JLCPCB on June 5th and they were shipped to me via EMS. I received it at the post office today. The postal service in the Philippines does not deliver EMS (Express Mail Service). It's a bizarre system where you have to go to the post office to pick it up and pay a fee of 118 pesos ($2.2). The circuit board is small, measuring 410mm x 550mm.  |
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From left to right: ESP32-C3, ASM1117 3-terminal regulator, and below that, MCP6002 op-amp. |
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The circuit board in the photo above is the pre-correction version; this pattern has been corrected.
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| I debugged the ESC32-C3 program using a breadboard. I was troubled by the output voltage hunting, swinging wildly from 0V to 3.3V. in the endThe DIR terminal must be connected to GND.I finally figured that out yesterday and completed the debugging.  |
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After debugging was complete, I fixed the magnet to the broken potentiometer with epoxy resin. |
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An AS5600 magnetic encoder was attached to the KR-500 elevation rotator. |
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I placed the circuit board I made into a waterproof box. |
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I attached a waterproof box to the KR-500. |
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| I have three more circuit boards. I will sell it to anyone who wants it for a fee. We can handle both circuit boards and finished products. Software and KiCAD board information will be released at a later date. du9@ji1fgx.com |
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| June 5, 2026. June 16, 2026. | ||||||||||