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bonhug
bonhug vor 1 Stunde
Just a head up for those still making this, the power supply pins for U3 (LT1097) are transposed on both the schematic and board.  (Or they are with my version of Eagle?) Also, if anyone is making boards, the mounting hol;e at the lower left of the PCB (next to the OCXO) is too tight against the OCXO so normal size washers can't be used.  However, Joost, thanks again for making this public and mine is now working happily.  
GPS assisted 10 MHz frequency reference
JakkeTet
JakkeTet vor 6 Stunden
Der durchsichtige Kunststoff kann ein Problem für die Transparenz im Ultravioletten sein, es ist am besten, ein Fenster aus mehreren Lagen PTFE-Band herzustellen, wie es für die Abdichtung von Gewinden in Wasserrohren verwendet wird. Schauen Sie sich dazu die Dokumentation von Vishay an, ich werde sie Ihnen im Anhang zusenden Es gibt auch eine Reihe von Parametern, die bei der Verwendung von PTFE angepasst werden müssen Siehe meine Parameter im Code void configureUvSensor(void){   Serial.println("Configuring VEML6075");     // Set the integration constant   uv.setIntegrationTime(VEML6075_100MS);   // Get the integration constant and print it!   Serial.print("Integration time set to ");   switch (uv.getIntegrationTime()) {     case VEML6075_50MS: Serial.print("50"); break;     case VEML6075_100MS: Serial.print("100"); break;     case VEML6075_200MS: Serial.print("200"); break;     case VEML6075_400MS: Serial.print("400"); break;     case VEML6075_800MS: Serial.print("800"); break;   }   Serial.println("ms");   // Set the high dynamic mode   uv.setHighDynamic(true);   // Get the mode   if (uv.getHighDynamic()) {     Serial.println("High dynamic reading mode");   } else {     Serial.println("Normal dynamic reading mode");   }   // Set the mode   uv.setForcedMode(false);   // Get the mode   if (uv.getForcedMode()) {     Serial.println("Forced reading mode");   } else {     Serial.println("Continuous reading mode");   }   // Set the calibration coefficients   uv.setCoefficients(2.22, 1.33,  // UVA_A and UVA_B coefficients                      2.95, 1.74,  // UVB_C and UVB_D coefficients                      0.001461, 0.002591); // UVA and UVB responses   // Set the calibration coefficients for PTFE window 0.7mm thick & 10mm dia.   // uv.setCoefficients(2.22, 1.17,  // UVA_A and UVA_B coefficients   //                 2.95, 1.58,  // UVB_C and UVB_D coefficients   //                 0.007923, 0.008334); // UVA and UVB responses                   }  
Firmware update ESP32 Weather Station (180468)
Michel DUC
Michel DUC vor 11 Stunden
these one are referenced as K-LD2 and K-LD7
Experimental Doppler Radar [160385]
Michel DUC
Michel DUC vor 11 Stunden
Hello the K-LC6 is very close to the k-LC5, inn fact the benefit of the K-LC6 is the detection range but the detection angle is reduced in horizontal.  We are RFbeamdistributor for France. The K-LC6 was used for some drones and when limited range of the K-LC5 was a problem.  If you need really higher range you have to use a K-MCx  from Rfbeam. Of course le module is bigger.  You have to know that Rfbeam offer now  radars with K-LC2 or K-LC7 with integrated signal processor communicating with host uC  with a serial link. 
Experimental Doppler Radar [160385]
Evert
Evert vor 14 Stunden
Hi,  In the mean time RFbeam has also an K-LC6 available, which has a less wider beam. I would say this is better for several use cases. At Rfbeam they advised me to use this one for my application. From a hardware point of view it has the same interfaces. Can someone tell if this is also compatible from a software point of view?  
Experimental Doppler Radar [160385]