Author Archive for pEtEr mEtRo


Thai grilled shrimp

Marinade the shrimp :

  • 2 Tablespoon Thai Seasoning Paste
  • 1 cup coconut milk
  • 1/3 cup lime juice
  • 2 Tablespoon cilantro (fresh/dried)
  • sea salt (to taste)

Blend or process the above, about 1/2 lb shrimp (heads on preferred), added and let stand 30 minutes at the most. Grille skewered shrimp preferred, or broil just till pink with slight char. Serve.


Tasty shrimp, the shells give a pleasant crunch and the combo of the marinade gives the shrimp a sweet almost tomato taste, not hot spicy but sweet spice flavor. I have used the same marinade with thin cut chicken breast with good results as it’s different than the usual BBQ rub and  sauce.


Thai spice paste

  • 1/2 Teaspoon cumin (ground/seed)
  • 1 Teaspoon salt
  • 2 Teaspoon pepper (triple blend black,white,  Szechuan)
  • 2 Teaspoon red pepper (dried hot red pepper)
  • 1 Teaspoon lemongrass (diced)
  • 2 Tablespoon garlic (minced/granulated)
  • 2 Tablespoon ginger (minced/ dried)
  • 2 Tablespoon coconut
  • 1 Tablespoon sugar (palm or unprocessed)

the above is the basic ingredients , some were (substituted) and the measured amounts can vary.

Basically all ingredients minced by the food processor into a paste.


Stored in a mason jar for use, marinade and seasonings.





Most nonperishable items are now purchased online and delivered, shipping usually free. Items purchased online are not available for the “savings catcher” program even though the packing list /reciept has a TC bar code.

The fresh food available at the asian market offers a wide selection of fruit, vegetables and other culinary items. Seafood is 1/2 lb shrimp w/head. Meat is chicken breast @ 1.79/lb.



broccoli and mushroom fried rice

Boil some rice like pasta in water, when cooked, drain and rinse with cold water. Saute mushrooms, here shitake and brown beech mushrooms, then saute thiny sliced brocolli . Return the rice to the pan, splash with soy sauce, then sesame oil. , season with salt and pepper, serve. You could also steam the brocolli for softer bite.IMG_5361



Electron maneuvering

Just a post about current electronics , hacks etc. while everything else is going on.

Computer power supply project.

Since computer power supplies are plentiful, utilized an old video tape player case  to enclose a power supply, digital readout meters serve as a power indicators. 12 volt, 5 volt and 3.3 volts. On /off switch mounted to case. The on/off switch is connected to a soft control 2 wires on the ATX power supply, not the mains voltage input. Opening in top for fan exhaust.

Most projects are a work in progress. Power supply is short proof , the on/off switch will reset power. Should add some banana jacks later, for now alligator clips to the appropriate connectors and USB jack for 5 volt appliances. When necessary, a voltage/amperage digital gauge is used in line to monitor current as this is a several 100 watt supply that will provide quite a bit of amperage at the outputs. Now a stable bench top power supply is available when needed.


 LED lighting

Some single color, not RGB for now, low-cost modules to control low voltage LEDs either cob, strings or other low voltage lighting that can benefit from dimming, strobing, or speed adjusting dimming with or without  remote control. Installed in-line to LEDs. Under cabinet strip lighting, re-wiring of lamps to a low voltage LED illumination are some of the uses. Could they be used for other purposes other than lighting?

In line push button controller on LED tape lighting, there is no on/off switch so one will have to be installed if necessary.

The remote control module has more control with on/off and of course more convient to use (as long as the remote doesn’t get lost!).

One concept, edge lighting a prototype stained glass art project. LED tape sandwiched in the channel. Remote lighting control. Inexpensive 120vac to 12 volt modules (wall worts) are used for the low voltage supply.

Cob LEDs project

Analysis, fragile, not flexible but very bright for the size.

Know as filament LEDS

Inexpensive and could be used for a variety of lighting projects.

These are higher voltage models.

A round 1 watt Cob LED, now my desk light, in comparison to a strip led tape. Both are 12 VDC. The LEDs on the cob are extremely tiny.






LiPo battery charging

The USB chargers that come with 1s batteries either charge slow since they are limited to a USB amperage or quit working. Small 3s battery balance  charger boards (other varieties available) fed from 12 volts wired with JST connectors to provide multiple battery charging. An education of the wiring of a balanced charging plug (multiple connector)  LiPo  batteries. With the use of small adjustable voltage regulation boards, these batteries are excellent for  portable battery-powered projects instead of non charging alkaline cells. One note of caution, this technology can provide amps of low voltage power from a small package, an accidental short can easily melt wires and weld contacts together. There is usually no fusing within the battery. As you go up the ladder to higher capacities batteries, a LiPo safe (container) should be considered. The larger batteries can pump out amps for high current applications and should be handled carefully.  With some high capacity drones and radio control projects a small fire extinguisher may be cheap insurance.

The ALPHA1 250 Class Drone Construction.

Not to be satisfied with assembling a kit as usual, the 250 ZMR project continues. Wiring can quickly evolve to a mess. The flight controller , receiver and associated Electronic Speed Controllers are miniature computers. After mounting these components, there is little room for wiring, also utilizing PWM receiver controls results in a rats nests of wires. (this may be changed to single wire receiver). The supplied plug-in connectors were removed and ESC control lines were hardwired to the flight controller. The main DC power to the ESCs and battery connector wires also hardwired with both  a single 2S or parallel  2 in  series 2S connectors (for 4S power) available. The DC main and possible battery location will be below the main deck along with the ESCs. Some drone designs utilize a 4 in one ECS, mine of course are separate units. A variety of aluminium spacers were ordered to attach the deck plate(s) that will be used for a lower profile.

one iteration
another design, lower top plate.

Associated wiring of the flight controller outputs to  below main deck ESCs, removal of the supplied right angle header on flight controller and the wires hard soldered from below cleaned up some clutter. Next will be the addition and calibration of the receiver. Considering still using the solid hull sides (cut horizontal) enclosing the electronics on decks and /or more horizontal chassis plates (chopped and channeled). Antenna mounts ordered for receiver. USB extension cord used for programming after build.

Mains wiring to the motors is enclosed in carbon fiber conduit which further complicated the wiring scheme. The wiring for the receiver inputs is yet to be added.

You can see the previous difference if interested at repair of the UDI drone/ state of the drone/ updated

Dronin Flight Control is currently loaded on board, All other flight control software still did not work on a MAC laptop so  a Windows desktop system is used for calibration. May be a bad cable USB etc to the MAC but  time-consuming pointless troubleshooting at this point. Would be nice to a have laptop programming available for portability.

Wiring of the ESCs was time-consuming as the factory wiring was removed and soldered to custom length and some was rewired for proper motor rotation. Some jitter on the ESC motor testing but cleaning up and soldering of the ESCs and calibration cured the problems.




Several drafts to publish of previous cooking fall under the category of soup so here they are in one posting. A vegetable fresh soup is similar in prep to a salad. Even with the hot weather it seems that a bowl of soup has a cooling effect.

Veggie broth with porcupine meatballs

The porcupine meatballs was from a recipe originally with a sweet tomato sauce.

Not too many ingredients in the meatballs let the flavor of the meat be present.

  • 1 lb. meat (I used pork for this recipe).
  • 3/4 cup jasmine rice
  • 1 egg
  • 3 green onion minced
  • 1 tsp. fresh garlic
  • 1 tsp. salt
  • 1/4 tsp celery seed
  • 1/2 tsp. coriander seeds


Minced up the meat and additives in a food processor, I gave the rice a quick buzz to break into smaller pieces. Jasmine rice not available. The minced meatball mix  was refrigerated as I prepare some vegetable broth.

Using a scooper, it’s easy to make the meatballs.


Broth to the simmer, with the meatballs till cooked

Plate up hot broth, meatballs, thin cut veggies and noodle.



Minced chicken soup




Another recipe using rice flour noodle




Chicken Gizzard Soup


Whats good with soup, my daughters recipe for Zaatar Twists, just use puff pastry



Sweet Vietnamese Coffee

In an effort to eliminate a lot of un needed beverages from my diet , the coffee that is consumed usually is from green sourced beans. One recent favorite is using green robusta beans small batch roasted in an hot air type popcorn popper.

Fresh ground is the second freshness, each serving is ground as demand and such a small amount utilises a mortar and pestile.

Grind to fine grind

Portion control lets you measure, and compare with different grinds and different beans and be in control of the beverage.

Nothing fancy here for brewing equipment. A reusable mesh filter bag from beer making supplies, easy to clean and reuse.

A hario dropper cone, over the cup will fit under the Kuerig machine.

 Large cup selection, the temperature and amount is fixed, no neeed to heat water from kettle.

All inserts have been removed from the Kuerig, so the water splashes onto the ground  beans.

Finish with condensed sweet milk, this will bring up the sweetness of the cup yet retain the earthy flavor of the robusta.

A bit of a stir and adjust sweetness to your liking.


July 2018
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