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Diary, February 2025



Sun Mon Tue Wed Thu Fri Sat
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 23  24  25  26  27  28  29
 30  31


Saturday, March 1, 2025

Rhythmic Landscape

In the afternoon, Conny and I went to Rijksmuseum Twenthe to see some exhibitions. We first went to see the exhibition Seeing & Believing: Sensory experience in the late Middle Ages.. Each room had his own theme. In the room 'Smelling & Believing", we smelled the four smells: Sulfur, incense, kroedwusj (a traditional bouquet of seven specific herbs or plants, a custom rooted in the Limburg region of the Netherlands, particularly tied to the Catholic feast of the Assumption of Mary celebrated on August 15th), and pomander. In the 'Touching & Believing' room, we saw Master of the Glorification of the Virgin, Annunciation: Mary. circa 1465-1475. In the 'Touching & Believing' room, we saw Prayer Nut in the Shape of the Virgin Mary's Head, with the Carying of the Cross and the Crucifixion, 16th century, with some incredible minature sculpting.

At the Elsbeth Cochius exhibition, we saw the linocuts by Elsbeth Cochius. I found the following linocuts noteworthy:

I watched the short documentary about her and her way of working. I took some close-up pictures of Oak Forest because of the intrigated details in the linocut that not visible from a distance. We found this exhibition to the best of what we saw today.

Next, we walked through the treasury rooms. I found the following works (of which most I already have seen) noteworthy:

Finally, we saw the exhibition Me, the other & the earth, the new collection presentation. I found the following works noteworthy:

At 15:37, I bought the exhibition catalogue Elsbeth Cochius written in Dutch by Ingrid Blans, Sipke Huisman, Jet van der Sluis, and Margót Velduizen, edited by Josien Beltman and Elsbeth Cochius, and published by Rijksmuseum Twenthe on Monday, February 17, 2025, ISBN:9789462626126, for € 24.95.


Monday, March 3, 2025

Book

At 17:16:28, I bought the book Graduation 2015, edited by Thomas Widdershoven, written in English and published by Design Academy Eindhoven in 2015, ISBN:9789491400230, from Rataplan for € 3.20.

Mercury

This evening, around half past six, I biked to the bridge over the expressway near our home, to see if I could spot the planet Mercury, which should be visible almost straight below the planet Venus. There were a lot of contrails in the sky and there also seemed to be some thin clouds at the horizon. I had already given up the hope to spot Mercury but decided to wait till seven. At about five to seven, I suddenly spotted a very small light in the sky and concluded that it must be Mercury. I took some pictures, but they did not turn out very well. Below is a small area of one of the pictures, which clearly shows the motion blur. This is the first time in my life that I saw the planet Mercury with my own eyes.


Tuesday, March , 2025

Mercury (2)

This evening, I went outside with a tripod and took some pictures just from the street near our home. I did not use the self-timer, so, most of the pictures do have some motion blur. The last (and best, in my opinion) picture is shown below.


Friday, March 7, 2025

19.0° Celsius

The temperature at Twenthe Airport has gone up to 19.0° Celsius, which breaks the previous record of 16.7° on this date in 1991 by 2.3°. This is the first weather record of 2025.


Saturday, March 8, 2025

19.4° Celsius

The temperature at Twenthe Airport has gone up to 19.4° Celsius, which breaks the previous record of 16.0° on this date in 2014 by 3.4°. This is the second weather record of 2025.


Sunday, March 9, 2025

Going into the city

I biked into the city without a coat. Although it was less warm than yesterday, the temperature went up to 18.0°C (not breaking any record). At 14:27, I stopped at a street tile in remembrance of the boundary marker stone Steen bij de Janninksbleek that was placed along the markes Esmarke and Usselo. The road Dennenweg is this border. The road has been since at least 1850. I had searched for this tile before but at the wrong side of the road. At 15:01, I bought the book Een nieuwe tijd written by Toon Tellegen with illustrations by Rauser, René Knip, Hans Muller, David Benqué, Vittorio Roerade, Paul Faassen, Elspeth Diederix, Harmen Liemburg, and Lava, written in Dutch and translations in English, and published by Grafisch Nederland on Thursday, February 1, 2008, ISBN:9789070809065, from Het Goed for € 7.50. At Tetem Art Space, I saw the exhibition Reality Blinking by en Ho Bin and Santiago Colombo Migliorero. I watched the short film Ep.8 Reality Sandwich: Reality Blinking that they made together. At 15:39, I bought a multigrain triangular bread roll, decorated with sesameseed and linseed for € 1.09 at the SPAR franchise shop in the city center. At Concordia I saw the exhbition Doublet #7: In the sense of scenery with works of the two artists Alexandra Leykauf and Sara Rajaei. From Sara Rajaei the following videos were on display: From Alexandra Leykauf the following works were on display: At 16:26:56, I bought the book Hier mijn hand en dáár je wang: wat intieme correspondentie, correspondence between Heere Heeresma and Laurie Langenbach in Dutch and published by Peter Loeb in 1978, ISBN:9789062130467, from bookshop Broekhuis for € 6.75.


Monday, March 10, 2025

ESP32-S3: Measuring intervals

If you want to use the ESP32-S3 to measure the interval between events on two GPIO ports this is possible with the use of the Motor Control PWM (MCPWM), except of course, if you are not using it to control a motor. It is a bit tricky, if I understand it correctly. The MCPWM has three timers. These are 16 bit timers that have a prescaler. I understand that the prescaler is a divider for the APB clock. But this actually not relevant. The first timer, which is called TIMER0, can be synchronized on signal 160 (as mentioned in Table 6-2), where the input signal is called pwm0_sync0_in and the output signal is called pwm0_out0a. The synchronization is enabled through the value of the MCPWM_TIMER0_SYNC_REG. I presume that the field MCPWM_TIMER0_SYNCO_SEL has to be set to 0 (the default value) to generate the output signal 'sync_out'. The MCPWM also has three 32-bits capture timers, which can be incremented on the APB clock and syncronized on one of the timers 'sync_out', which I presume, for timer0, is the signal 160. On the synchronization the value of the timer is set to the value of the MCPWM_CAP_TIMER_PHASE_REG register. With the one capture timer, there are three capture channels. The first capture channel, is connected to signal 166 of which the input signal is called pwm0_cap0_in. You can select whether you want to capture on the falling or rising edge. I understand that a capture trigger, the current value of the capture timer will be stored in capture register, which for capture channel 0 is MCPWM_CAP_CH0_REG. I presume that this happens everytime when the trigger event happens (taking into account the prescaler). I presume that TIMER0 also need to be started. Take note that some of the settings require an update bit to be set in the MCPWM_UPDATE_CFG_REG before they become effective.


Wednesday, March 11, 2025

ESP32-S3: Measuring intervals (2)

Yesterday, I wrote something about how to measure intervals using the ESP32-S3. It seems that it is possible to synchronize the capture timer without using a timer, like the TIMER0 I mentioned. In the description of the MCPWM_CAP_SYNCI_SEL field of the MCPWM_CAP_TIMER_CFG_REG register it states that the value 4 selects 'SYNC0 from GPIO matrix', which seems to stand for the pwm0_sync0_in signal. The low-level functions are found in the file mcpwm_ll.h of the specific ESP32 variant. The function mcpwm_ll_capture_set_gpio_sync can be used to set the field in the register. This function is called by the function mcpwm_capture_timer_set_phase_on_sync in the mcpwm_cap.c file. More information about how to call this function and other function to set up the capture timer, see MCPWM Capture Timer and Channels and MCPWM Sync Sources in the ESP-IDF documentation.


Wednesday, March 12, 2025

Carte Blanche

At 20:43, on my way to the artist collective B93, I stopped to look at a street tile in remembrance of the boundary marker stone Bröäkersteen that was placed along the markes Esmarke and Usselo. At B93, I saw the exhibitions Asian Artist for Sale by Ho Bin Kim and Like a giant gumball by Santiago Colombo Migliorero. Upstair was the installation of Ho Bin Kim consisting of a 'stall' filled and surrounded by objects and boxes from Asia. Downstairs was the exhibition of Santiago Colombo Migliorero, which consisted of several moving contraptions, like a little bike running circles on the floor or a moving finger. He also had a collection of soils from various places. Even some he brought from Spain. There also was a circle of pottery shards.


Friday, March 14, 2025

Battlegrounds

After work, I went to see the exhibition Battlegrounds with paints by Ayşen Kaptanoğlu at Villa de Bank. Interesting paintings.


Saturday, March 15, 2025

Amsterdam

I went to Amsterdam. I took the metro to De Pijp and visited the bookshop Het Martyrium. It looks like the renovation that it finished. There is a lot of room in the shop, but whereas before they had a lot of bargains, now there are just a few. I did not stay long and went to Stedelijk Museum. There I saw several exhibition. The first exhibition I saw was Sleeping Guards with works by Selma Selman. I saw the following works: I walked through the exhibition Oltre Terra by FormaFantasma, but did not think much of it. Next I saw I Hear You, I Hear You by Nota Turato. From the collection, I found the following works noteworthy: I saw the exhibition POST/NO/BILLS #5: BHLNTTTX by Hezin O. I experienced Manifestation #54 Shifting | Spirit | Time (three-channel video on loop, 5.1 audio, 7 minutes 41 seconds) by julianknxx and studioknxx from 2025. It was kind of meditative and it reminded me of mantra singing. This was really the high light of the visit to the museum.

From the exhibition Circulate – Photography Beyond Frames, I found the following works noteworthy:

More from the collection:

Next, I brought a visit to bookshop De Slegte and The American Book Center where I bought a small, white dodecaherdon, which I found in a basket of dices. It did not have any marks on it, so, it was not a dice.

From there I walked to gallery andriesse & eyck to attend the opening of the exhibition BLING BLING with works by Carel Blotkamp he made in the past 25 years. Most of his works are based on well know art works, which he recreates with sequins. I found some of the works quite impressive. At the moment there is also an exhibition, called Bling, at Centraal Museum. Afterwards, I also paid a short visit to bookshop Scheltema.


Tuesday, March 18, 2025

A day in the Meadows

This evening, I went to visit the exhibition 'A day in the Meadows' at Tankstation with works by the artist mentioned in the COWMAG zines: Beginning #0, Belonging #1, and Becoming #2. The exhibition was curated by Sietse Henselmans and Marsha van Leersum. From the exhibition, I found the following works noteworthy:


This months interesting links


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