Oscilloscopes#
FNIRSI DSO152#
| Bandwidth | Sampling Rate | Min Time Div |
|---|---|---|
| 200 KHz | 2.5 MSa/s | 10 μs |
A small single-channel oscilloscope that introduced me to the world of waveforms. It’s well suited for measuring simple processes such as capacitor discharge or a signal from a 555 timer. But the limitations of a single channel become apparent quickly.
Its bandwidth is sufficient to measure the fastest operations on the UNO R3. Beyond that, limitations start to appear.
OWON HDS242#
| Bandwidth | Sampling Rate | Min Time Div |
|---|---|---|
| 40 MHz | 250 MSa/s | 5 ns |
A very convenient two-channel oscilloscope with all the necessary features for advanced measurements. For example, it allows measuring the CPU clock speed on the XTAL2 pin of an ATmega328P and correlating it with the duration of a digitalWrite operation. With some skill, it can even serve as a replacement for a four-channel oscilloscope.
Its bandwidth is sufficient to measure the fastest digital operations on the GIGA.
