Voltlog #13 – InTheMail AD9850 CC2541 CSR8615 OVC3860 Mifare

In this InTheMail episode I receive the following items:

  • AD9850 DDS Signal Generator Module 0-40MHz.
  • Bluetooth CC2541 4.0 BLE UART Transceiver Serial Module (Texas Instruments).
  • SPK-8615-A Bluetooth 4.0 Mono Audio Module with CSR8615.
  • XS-3868 Stereo Bluetooth Module with Omnivision OVC3860.
  • 1Hz-50MHz Frequency Meter Kit (7 segment LED display).
  • LED POV Rotating Electronic Kit.
  • Macro 58mm Filter Close Up Lens Set For Nikon D3000 D3100.
  • 0.36 Inch Digital Voltmeter 0 – 200V 7-segment LED.
  • SMA male to BNC male coaxial pigtail RG58.
  • BR-2/3A Panasonic Lithium Battery.

Voltlog #11 – InTheMail ICR18650-26F NCR18650B Mifare RC522 RFID Xiaomi 5000mAh

Another VoltLog InTheMail, this time I receive the following items:

  • ICR18650-26F 2600mAh 3.6V Rechargeable Li-ion Battery.
  • NCR18650B 3400mAh 3.7V Rechargeable Li-ion Battery.
  • 3S JST connector cable.
  • DC-DC 0.9V-5V USB Output Charger Step Up Power Module.
  • ESD Anti-Static Shielding ZIP LOCK Bags.
  • Mifare RC522 RFID Induction Reader Module.
  • 100 Pcs 0805 SMD LED Diode 5 Colors.
  • Original Xiaomi 5000mAh Ultra-thin 9.9mm Power Bank.
  • TI Precision Amplifier Quickstart Kit AMPQUICKKIT-EVM
    OPA313, OPA314, OPA316, OPA170, OPA171, OPA172.

VoltLog #10 – HP 3478A Line Voltage and Frequency Adjustment 110V 60Hz to 230V 50Hz

In this video I am switching my HP 3478A from 120V 60Hz AC to 230V 50Hz AC using the internal selection. I am also comparing some voltage and resistance measurements to my Keithley 175 and I realize the HP needs calibration if I am to trust it’s measurements. While I was inside the meter I also checked the voltage of the internal battery used to store calibration data.

VoltLog #9 – InTheMail HP 3478A, Probe Master 8028S, Anker Astro E3, Seagate Expansion 2TB

In this InTheMail segment I receive the HP 3478A 5.5 digit multimeter, a Probe Master 8028s test lead set, the Anker Astro E3 10000mAh portable battery charger and the Seagate Expansion 2TB external storage hard drive.

VoltLog #8 – Kit Assembly 0-30V 0-3A Adjustable Linear Power Supply

In this video I am assembling a 0-30V 0-3A Adjustable Linear Power Supply kit. Will it work at first power on? Or will Murphy get me this time? Watch the video and see how I got myself into trouble. I also reverse engineered and got a schematic of this kit which I am showing towards the end of the video.

VoltLog #7 – In The Mail

A list of the items I show on this InTheMail video:
2.4 inch 320×240 px TFT display module based on the ILI9341 lcd controller, complete with touchscreen, uSD card slot, 128Mbit flash, independent font chip and the required power circuitry.

ESP8266 modules (3 different variations), a small solar panel, waterproof enclosure and Li-ion battery cells. uSD card holder thing. 13W LED 5050 E27 lightbulb. Breadboad + breadboard power supply + jumper cables. 0-30V 0-2A Adjustable lab power supply kit, unassembled. A bunch of components I ordered from Comet Electronics.