https://sourceforge.net/p/metal-detector-based-on-rp2040/activity/Recent activity for Metal detector based on RP2040enThu, 31 Oct 2024 07:35:51 -0000https://sourceforge.net/p/metal-detector-based-on-rp2040/discussion/pi_metdet_hw/thread/ecfbde4f0b/?limit=25#bcd3Some time ago, my power supply that i have presented ( Parkside accumulator) was dead. So I decided to build another power supply and opted for two in series 18650 Li-Ion Batt (8.2 v when fully charged) folowed by XL6009 up converter module tuned for 14.8 v output voltage. The result is bad becose of great noise that this module generate and this will influence reading of adc inputs of Raspberry pi Pico. So, avoid using such kind of solution !!!Daniel MihaiThu, 31 Oct 2024 07:35:51 -0000https://sourceforge.net/p/metal-detector-based-on-rp2040/discussion/pi_metdet_hw/thread/ecfbde4f0b/?limit=25#bcd3https://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/power%2520supply.pdf/downloadMetal detector based on RP2040Tue, 31 Aug 2021 06:06:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/power%20supply.pdf/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/final%2520asembly.jpg/downloadMetal detector based on RP2040Wed, 19 May 2021 16:52:08 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/final%20asembly.jpg/downloadhttps://sourceforge.net/p/metal-detector-based-on-rp2040/discussion/pi_metdet_performance/thread/0963358ddf/?limit=25#63a3Hi Max, You are right, analog part is same as Spirit Pi...has good results.... The only modification is usage of a RPi Pico board witch will replace ESP32 board. Also, the principle of detection is different. Please check the flowchart of the application and try co corelate with the code. There is no interrupt usage, no time measurement and comparision. The basic is to read a voltage value witch is coming from a OpAmp at a fixed moment, and compare this value with the value that is obtained in calibration...Daniel MihaiWed, 14 Apr 2021 11:55:33 -0000https://sourceforge.net/p/metal-detector-based-on-rp2040/discussion/pi_metdet_performance/thread/0963358ddf/?limit=25#63a3https://sourceforge.net/p/metal-detector-based-on-rp2040/discussion/pi_metdet_performance/thread/0963358ddf/?limit=25#d136I am very interested in this project, I am waiting to receive rpi pico to be able to test it, while I was waiting I talked about your project on a forum, I received various comments that could be useful for your project: It appears to be based on the Spirit PI. Minimum sample delay is 20us, and TX pulse rate can be varied between 20pps and 160pps. There is no Earth Field Elimination (EFE). Interrupts are not used, as the timings are all generated by software delays. Detection of a one Euro coin is...maxWed, 14 Apr 2021 09:01:58 -0000https://sourceforge.net/p/metal-detector-based-on-rp2040/discussion/pi_metdet_performance/thread/0963358ddf/?limit=25#d136https://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v2_03042021.rar/downloadMetal detector based on RP2040Sat, 03 Apr 2021 16:23:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v2_03042021.rar/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1%252020032021.rar/downloadMetal detector based on RP2040Tue, 30 Mar 2021 08:50:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1%2020032021.rar/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%2520files/file6.mp4/downloadMetal detector based on RP2040Sun, 28 Mar 2021 07:14:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%20files/file6.mp4/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%2520files/file2.mp4/downloadMetal detector based on RP2040Sun, 28 Mar 2021 07:06:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%20files/file2.mp4/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1.rar/downloadMetal detector based on RP2040Sun, 28 Mar 2021 06:08:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1.rar/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%2520files/file5.mp4/downloadMetal detector based on RP2040Sat, 27 Mar 2021 09:41:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%20files/file5.mp4/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%2520files/file4.mp4/downloadMetal detector based on RP2040Sat, 27 Mar 2021 09:29:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%20files/file4.mp4/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%2520files/file3.mp4/downloadMetal detector based on RP2040Sat, 27 Mar 2021 06:55:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%20files/file3.mp4/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%2520files/file1.mp4/downloadMetal detector based on RP2040Sat, 27 Mar 2021 06:53:02 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/video%20files/file1.mp4/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%2520schematic.pdf/downloadMetal detector based on RP2040Fri, 26 Mar 2021 07:25:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%20schematic.pdf/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_2003.2021%2520fwchart.pdf/downloadMetal detector based on RP2040Fri, 26 Mar 2021 07:25:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_2003.2021%20fwchart.pdf/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%2520proto.pdf/downloadMetal detector based on RP2040Fri, 26 Mar 2021 07:25:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%20proto.pdf/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%2520doc.pdf/downloadMetal detector based on RP2040Fri, 26 Mar 2021 07:25:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%20doc.pdf/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%2520pcb%2520pics.pdf/downloadMetal detector based on RP2040Fri, 26 Mar 2021 07:25:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/xaj_v1_20032021%20pcb%20pics.pdf/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/software/main.py/downloadMetal detector based on RP2040Fri, 26 Mar 2021 07:24:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/software/main.py/downloadhttps://sourceforge.nethttps%3A//sourceforge.net/projects/metal-detector-based-on-rp2040/files/software/tm1637.py/downloadMetal detector based on RP2040Fri, 26 Mar 2021 07:24:03 -0000https://sourceforge.net/projects/metal-detector-based-on-rp2040/files/software/tm1637.py/download